CVE-2026-57576

Description

plone.app.dexterity is a content-type system for the Plone content management system, and plone.app.contenttypes provides Plone’s Dexterity-based content types. Plone.app.dexterity versions through 3.2.2, 4.0.0 through 4.1.2, and 5.0.0, and plone.app.contenttypes versions through 3.0.11, 4.0.0 through 4.0.9, and 5.0.0 are vulnerable to denial of service because an authenticated user can create content with excessively long titles, descriptions, or uploaded-file names, causing Plone to become unresponsive and potentially making the resulting content difficult to edit or delete. The vulnerability is patched in plone.app.dexterity versions 3.2.3, 4.1.3, and 5.0.1, and in plone.app.contenttypes versions 3.0.12, 4.0.10, and 5.0.1.

Overview

State: PUBLISHED
Assigner (CNA): GitHub_M
CVSS severity: MEDIUM
CVSS score: 6.5 / 10
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Effective score: 6.5 / 10 MEDIUM source: CNA overview
CWE(s): CWE-400
Reserved: 2026-06-24
Published: 2026-09-22 23:01 UTC
Last updated: 2026-09-22 23:01 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/57xxx/CVE-2026-57576.json

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published: 2026-09-22 23:17:07 UTC
NVD last modified: 2026-09-22 23:17:07 UTC
NVD CVSS v3.1: 6.5 / 10 MEDIUM source: security-advisories@github.com
NVD CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Exploitability subscore: 2.8 / 10
Impact subscore: 3.6 / 10

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID: EUVD-2026-84980
Assigner: GitHub_M
Published: Sep 22, 2026, 11:01:22 PM
Updated: Sep 22, 2026, 11:01:22 PM
EUVD base score (CVSS 3.1): 6.5 / 10
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EUVD-reported EPSS: 0.0000
Vendors: plone
Products: plone.app.contenttypes (< 3.0.12)

plone.app.dexterity (= 5.0.0)

plone.app.contenttypes (4.0.0, < 4.0.10)

plone.app.dexterity (< 3.2.3)

plone.app.dexterity (4.0.0, < 4.1.3)

plone.app.contenttypes (= 5.0.0)

ENISA description: plone.app.dexterity is a content-type system for the Plone content management system, and plone.app.contenttypes provides Plone’s Dexterity-based content types. Plone.app.dexterity versions through 3.2.2, 4.0.0 through 4.1.2, and 5.0.0, and plone.app.contenttypes versions through 3.0.11, 4.0.0 through 4.0.9, and 5.0.0 are vulnerable to denial of service because an authenticated user can create content with excessively long titles, descriptions, or uploaded-file names, causing Plone to become unresponsive and potentially making the resulting content difficult to edit or delete. The vulnerability is patched in plone.app.dexterity versions 3.2.3, 4.1.3, and 5.0.1, and in plone.app.contenttypes versions 3.0.12, 4.0.10, and 5.0.1.

EUVD references (13)

Affected products (2)

Vendor	Product	Versions	Platforms
plone	plone.app.dexterity	`= 5.0.0` (affected), `>= 4.0.0, < 4.1.3` (affected), `< 3.2.3` (affected)	—
plone	plone.app.contenttypes	`= 5.0.0` (affected), `>= 4.0.0, < 4.0.10` (affected), `< 3.0.12` (affected)	—

Vendor references (13)

References embedded in the original CVE record by the assigning CNA.

https://github.com/plone/plone.app.dexterity/security/advisories/GHSA-5426-92w4-wvhv x_refsource_CONFIRM
https://github.com/plone/plone.app.contenttypes/security/advisories/GHSA-8pcw-h6w9-h46g x_refsource_MISC
https://github.com/plone/plone.app.contenttypes/commit/13dc98a578341aac24a1e65fd9bc7ac8a07d168a x_refsource_MISC
https://github.com/plone/plone.app.contenttypes/commit/21bae6ebe424689eeac9a5884fc0da35f4944e63 x_refsource_MISC
https://github.com/plone/plone.app.contenttypes/commit/639c0619f371df578e69ec94e5ca98e60fd6ed58 x_refsource_MISC
https://github.com/plone/plone.app.contenttypes/commit/7bb03e8ec6c6bd0e645f445b0755e85a51afb158 x_refsource_MISC
https://github.com/plone/plone.app.contenttypes/commit/bed1547d4f8b1fc995f2c76f30ba5f20276a8ad6 x_refsource_MISC
https://github.com/plone/plone.app.dexterity/commit/0d317df663823445200d0569a66a95b7e4a9c50d x_refsource_MISC
https://github.com/plone/plone.app.dexterity/commit/2fdceb120ca86682a408f3a14753cfcf5126d9d9 x_refsource_MISC
https://github.com/plone/plone.app.dexterity/commit/411689047f9a3521899ae6992a9b0efbd0592a8f x_refsource_MISC
https://github.com/plone/plone.app.dexterity/commit/cbcef731c0882146b9bf30688cdc639d879878fb x_refsource_MISC
https://github.com/plone/plone.app.dexterity/commit/f3596538cf7670bb8bc27b0dfa0b1da41c8b8a3a x_refsource_MISC
https://github.com/plone/plone.app.dexterity/commit/fb45bfdb18f1dfb3ed55e477947a3df9a6ee9e20 x_refsource_MISC

Web references (0)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

No web references attached yet.

NVD-tagged references (13)

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

https://github.com/plone/plone.app.contenttypes/commit/13dc98a578341aac24a1e65fd9bc7ac8a07d168a security-advisories@github.com
https://github.com/plone/plone.app.contenttypes/commit/21bae6ebe424689eeac9a5884fc0da35f4944e63 security-advisories@github.com
https://github.com/plone/plone.app.contenttypes/commit/639c0619f371df578e69ec94e5ca98e60fd6ed58 security-advisories@github.com
https://github.com/plone/plone.app.contenttypes/commit/7bb03e8ec6c6bd0e645f445b0755e85a51afb158 security-advisories@github.com
https://github.com/plone/plone.app.contenttypes/commit/bed1547d4f8b1fc995f2c76f30ba5f20276a8ad6 security-advisories@github.com
https://github.com/plone/plone.app.contenttypes/security/advisories/GHSA-8pcw-h6w9-h46g security-advisories@github.com
https://github.com/plone/plone.app.dexterity/commit/0d317df663823445200d0569a66a95b7e4a9c50d security-advisories@github.com
https://github.com/plone/plone.app.dexterity/commit/2fdceb120ca86682a408f3a14753cfcf5126d9d9 security-advisories@github.com
https://github.com/plone/plone.app.dexterity/commit/411689047f9a3521899ae6992a9b0efbd0592a8f security-advisories@github.com
https://github.com/plone/plone.app.dexterity/commit/cbcef731c0882146b9bf30688cdc639d879878fb security-advisories@github.com
https://github.com/plone/plone.app.dexterity/commit/f3596538cf7670bb8bc27b0dfa0b1da41c8b8a3a security-advisories@github.com
https://github.com/plone/plone.app.dexterity/commit/fb45bfdb18f1dfb3ed55e477947a3df9a6ee9e20 security-advisories@github.com
https://github.com/plone/plone.app.dexterity/security/advisories/GHSA-5426-92w4-wvhv security-advisories@github.com

Remediations (10)

Cisco Advance Notification for Publication of September 16, 2026 ...

web:sec.cloudapps.cisco.com

On September 16, 2026 , the Cisco Product Security Incident Response Team (PSIRT) published the advisories that are listed in the following tables. To remediate these vulnerabilities, Cisco strongly recommends that customers upgrade to the fixed software that is indicated in the advisories. For more information about changes in Cisco PSIRT vulnerability disclosure, see Strengthening the ...

2026-09-23 15:45 UTC
Microsoft Patch Tracker (September 2026): Exploit-Ranked | Senserva

web:senserva.com

Every Microsoft security patch (KB) and the CVEs it fixes, with severity, CVSS, and CISA KEV status. Cross-linked to the CVE reference.

2026-09-23 15:45 UTC
About the security content of iOS 26.6 and iPadOS 26.6

web:support.apple.com

This document describes the security content of iOS 26.6 and iPadOS 26.6.

2026-09-23 15:45 UTC
July 18, 2026—Hotpatch KB5121768 (OS Builds 26200.8893 and 26100.8893 ...

web:support.microsoft.com

This out-of-band (OOB) update for Windows 11, version 25H2 and Windows 11, version 24H2 (KB5121768) is cumulative. It includes all improvements from previous security and non-security updates, along with an additional fix . Improvements This OOB update includes the following improvement: [System Performance] This update addresses an issue affecting a limited number of devices with an Intel ...

2026-09-23 15:45 UTC
March 10, 2026—Hotpatch KB5079420 (OS Builds 26200.7979 and 26100.7979 ...

web:support.microsoft.com

This Hotpatch update for Windows 11, version 25H2 and 24H2 (KB5079420), improves functionality, performance, and reliability. To learn more about differences between security updates, optional non-security preview updates, out-of-band (OOB) updates, and continuous innovation, see Windows monthly updates explained. For information on Windows update terminology, see the different types of ...

2026-09-23 15:45 UTC
SAP Security Patch Day - June 2026

web:support.sap.com

SAP security Patch Day Bulletin This post shares the information on security notes that remediate vulnerabilities discovered in SAP products. SAP strongly recommends that the customer visits the support portal and applies patches on priority to protect their SAP landscape. On 9th of June 2026 , SAP security patch day saw the release of 15 new security notes.

2026-09-23 15:45 UTC
SAP Security Patch Day - September 2026

web:support.sap.com

SAP Security Patch Day Bulletin This post shares the information on security notes that remediate vulnerabilities discovered in SAP products. SAP strongly recommends that the customer visits the support portal and applies patches on priority to protect their SAP landscape. On 8 th of September 2026 , SAP security patch day saw the release of 19 new security notes. There is 1 update to ...

2026-09-23 15:45 UTC
Oracle Critical Patch Update Advisory - July 2026

web:www.oracle.com

This Critical Patch Update contains 1448 new security patches across the product families listed below. Please note that a My Oracle Support (MOS) note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at July 2026 Critical Patch Update: Executive Summary and Analysis.

2026-09-23 15:45 UTC
Oracle Critical Security Patch Update Advisory - June 2026

web:www.oracle.com

Additional CVEs addressed are: The patch for CVE - 2026 -34481 also addresses CVE - 2026 -34477, CVE - 2026 -34478, CVE - 2026 -34479, and CVE - 2026 -34480. Oracle Fusion Middleware Risk Matrix This Critical Security Patch Update contains 106 new security patches for Oracle Fusion Middleware. 53 of these vulnerabilities may be remotely exploitable without authentication, i.e., may be exploited over a ...

2026-09-23 15:45 UTC
July Patch RoguePlanet Tuesday Kills Windows Kerberos RC4 Rollback ...

web:www.techtimes.com

July 2026 Patch Tuesday permanently removes the Kerberos RC4 rollback registry key on July 14, leaving service accounts with RC4-only material unable to authenticate. Administrators must also ...

2026-09-23 15:45 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-57576.json.

{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "plone.app.dexterity",
          "vendor": "plone",
          "versions": [
            {
              "status": "affected",
              "version": "= 5.0.0"
            },
            {
              "status": "affected",
              "version": ">= 4.0.0, < 4.1.3"
            },
            {
              "status": "affected",
              "version": "< 3.2.3"
            }
          ]
        },
        {
          "product": "plone.app.contenttypes",
          "vendor": "plone",
          "versions": [
            {
              "status": "affected",
              "version": "= 5.0.0"
            },
            {
              "status": "affected",
              "version": ">= 4.0.0, < 4.0.10"
            },
            {
              "status": "affected",
              "version": "< 3.0.12"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "plone.app.dexterity is a content-type system for the Plone content management system, and plone.app.contenttypes provides Plone\u2019s Dexterity-based content types. Plone.app.dexterity versions through 3.2.2, 4.0.0 through 4.1.2, and 5.0.0, and plone.app.contenttypes versions through 3.0.11, 4.0.0 through 4.0.9, and 5.0.0 are vulnerable to denial of service because an authenticated user can create content with excessively long titles, descriptions, or uploaded-file names, causing Plone to become unresponsive and potentially making the resulting content difficult to edit or delete. The vulnerability is patched in plone.app.dexterity versions 3.2.3, 4.1.3, and 5.0.1, and in plone.app.contenttypes versions 3.0.12, 4.0.10, and 5.0.1."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-400",
              "description": "CWE-400: Uncontrolled Resource Consumption",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-22T23:01:22.308Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/plone/plone.app.dexterity/security/advisories/GHSA-5426-92w4-wvhv",
          "tags": [
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          ],
          "url": "https://github.com/plone/plone.app.dexterity/security/advisories/GHSA-5426-92w4-wvhv"
        },
        {
          "name": "https://github.com/plone/plone.app.contenttypes/security/advisories/GHSA-8pcw-h6w9-h46g",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/plone/plone.app.contenttypes/security/advisories/GHSA-8pcw-h6w9-h46g"
        },
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          ],
          "url": "https://github.com/plone/plone.app.contenttypes/commit/13dc98a578341aac24a1e65fd9bc7ac8a07d168a"
        },
        {
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          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/plone/plone.app.contenttypes/commit/21bae6ebe424689eeac9a5884fc0da35f4944e63"
        },
        {
          "name": "https://github.com/plone/plone.app.contenttypes/commit/639c0619f371df578e69ec94e5ca98e60fd6ed58",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/plone/plone.app.contenttypes/commit/639c0619f371df578e69ec94e5ca98e60fd6ed58"
        },
        {
          "name": "https://github.com/plone/plone.app.contenttypes/commit/7bb03e8ec6c6bd0e645f445b0755e85a51afb158",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/plone/plone.app.contenttypes/commit/7bb03e8ec6c6bd0e645f445b0755e85a51afb158"
        },
        {
          "name": "https://github.com/plone/plone.app.contenttypes/commit/bed1547d4f8b1fc995f2c76f30ba5f20276a8ad6",
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            "x_refsource_MISC"
          ],
          "url": "https://github.com/plone/plone.app.contenttypes/commit/bed1547d4f8b1fc995f2c76f30ba5f20276a8ad6"
        },
        {
          "name": "https://github.com/plone/plone.app.dexterity/commit/0d317df663823445200d0569a66a95b7e4a9c50d",
          "tags": [
            "x_refsource_MISC"
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          "url": "https://github.com/plone/plone.app.dexterity/commit/0d317df663823445200d0569a66a95b7e4a9c50d"
        },
        {
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          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/plone/plone.app.dexterity/commit/2fdceb120ca86682a408f3a14753cfcf5126d9d9"
        },
        {
          "name": "https://github.com/plone/plone.app.dexterity/commit/411689047f9a3521899ae6992a9b0efbd0592a8f",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/plone/plone.app.dexterity/commit/411689047f9a3521899ae6992a9b0efbd0592a8f"
        },
        {
          "name": "https://github.com/plone/plone.app.dexterity/commit/cbcef731c0882146b9bf30688cdc639d879878fb",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/plone/plone.app.dexterity/commit/cbcef731c0882146b9bf30688cdc639d879878fb"
        },
        {
          "name": "https://github.com/plone/plone.app.dexterity/commit/f3596538cf7670bb8bc27b0dfa0b1da41c8b8a3a",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/plone/plone.app.dexterity/commit/f3596538cf7670bb8bc27b0dfa0b1da41c8b8a3a"
        },
        {
          "name": "https://github.com/plone/plone.app.dexterity/commit/fb45bfdb18f1dfb3ed55e477947a3df9a6ee9e20",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/plone/plone.app.dexterity/commit/fb45bfdb18f1dfb3ed55e477947a3df9a6ee9e20"
        }
      ],
      "source": {
        "advisory": "GHSA-5426-92w4-wvhv",
        "discovery": "UNKNOWN"
      },
      "title": "plone.app.dexterity and plone.app.contenttypes have a Denial of Service due to excessive title or description length"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-57576",
    "datePublished": "2026-09-22T23:01:22.308Z",
    "dateReserved": "2026-06-24T18:49:56.208Z",
    "dateUpdated": "2026-09-22T23:01:22.308Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}