CVE-2026-79310
📛 CVE Title
CVE-2026-79310
Description
webpy web.py 0.76 is vulnerable to server-side template injection (SSTI). The template engine can be tricked into executing attacker-controlled template code that built-in security checks are designed to reject. When an application precompiles templates from a directory the attacker can write to and later renders them through the precompiled template loader, the sandbox is bypassed and the attacker's code runs, resulting in arbitrary Python code execution and OS command execution on the server.
Overview
- State
- PUBLISHED
- Assigner (CNA)
- mitre
- CVSS severity
- —
- CVSS score
- —
- CVSS vector
- —
- Effective score
- 8.5 / 10 HIGH source: NVD
- CWE(s)
- —
- Reserved
- 2026-08-25
- Published
- 2026-09-23 00:00 UTC
- Last updated
- 2026-09-23 18:21 UTC
- Source
- https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/79xxx/CVE-2026-79310.json
- Linked Threat
- CVE-2026-79310 — CVE-2026-79310
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
- 2026-09-23 16:16:45 UTC
- NVD last modified
- 2026-09-23 19:19:28 UTC
- NVD CVSS v3.1
- 8.5 / 10 HIGH source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
- NVD CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H- Exploitability subscore
- 1.8 / 10
- Impact subscore
- 6.0 / 10
NVD-assigned CWE(s):
CWE-94
(differs from the CNA list above)
NVD / KEV / EPSS data refreshed 2026-09-24 04:35 UTC. Re-run the 🛰 Backfill from NVD button above to refresh.
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-2026-85403 - Assigner
- mitre
- Published
- Sep 23, 2026, 12:00:00 AM
- Updated
- Sep 23, 2026, 6:21:44 PM
- EUVD base score (CVSS 3.1)
-
8.5 / 10
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H - EUVD-reported EPSS
- 0.0000
- Vendors
- n/a
- Products
-
n/a (n/a)
- Aliases
-
GHSA-8m9w-mh94-cwr6
ENISA description: webpy web.py 0.76 is vulnerable to server-side template injection (SSTI). The template engine can be tricked into executing attacker-controlled template code that built-in security checks are designed to reject. When an application precompiles templates from a directory the attacker can write to and later renders them through the precompiled template loader, the sandbox is bypassed and the attacker's code runs, resulting in arbitrary Python code execution and OS command execution on the server.
Affected products (1)
| Vendor | Product | Versions | Platforms |
|---|---|---|---|
| n/a | n/a |
n/a (affected)
|
— |
Vendor references (2)
References embedded in the original CVE record by the assigning CNA.
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 (2)
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/lichoin/TraceLoom/blob/main/CVEs/CVE-2026-79310.md cve@mitre.org
- https://github.com/webpy/webpy cve@mitre.org
Remediations (19)
Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.
-
web:foresiet.com
CVE - 2026 -59310 started as an emergency Broadcom patch in July. It became a global access campaign in August. In mid-September CISA said ransomware groups are now using it. The vendor fix is available. The remaining risk is unpatched and previously exposed vCenter. Our team is still monitoring this issue.
2026-09-24 11:50 UTC -
web:meterpreter.org
Discover how ransomware gangs actively exploit the critical VMware vCenter flaw, CVE - 2026 -59310. Learn about the swift weaponization and severe infrastructure risks.
2026-09-24 11:50 UTC -
web:securityonline.info
Broadcom released updates to fix a critical VMware authentication bypass ( CVE - 2026 -59309). A directory traversal flaw ( CVE - 2026 -59310) was also patched.
2026-09-24 11:50 UTC -
web:senserva.com
Exploited in ransomware attacks. CVE - 2026 -59310 is an actively exploited Broadcom VMware vCenter vulnerability, on the CISA KEV catalog since 2026 -08-18.
2026-09-24 11:50 UTC -
web:shattered.io
VMware's Patch and Mitigation Guidance Broadcom's guidance is straightforward: update to the fixed build for your version line as soon as possible, since the advisory lists no workaround for CVE - 2026 -59310. That absence of a workaround is significant. When a vendor cannot offer a configuration change or mitigation as a stopgap, patching becomes the only real option, which raises the stakes ...
2026-09-24 11:50 UTC -
web:tech-insider.org
VMware vCenter's CVE - 2026 -59310 (CVSS 9.8) has hit 361 IPs across 47 countries via Babuk ransomware. Timeline, country data, and patch steps for September 2026 .
2026-09-24 11:50 UTC -
web:thecybersecguru.com
The technical execution of the intrusion begins with the exploitation of the syslog directory traversal. Upon successfully triggering CVE - 2026 -59310, the cron daemon logs a malformed cron file named zz-poc59310-syslog.log. The naming convention of this file is highly revealing; the prefix directly references the CVE identifier, indicating that the attacker relied on a proof-of-concept script ...
2026-09-24 11:50 UTC -
web:valicyber.com
Vali Cyber analyzes CVE - 2026 -59310, a critical VMware vCenter vulnerability enabling unauthenticated root compromise and active attacks.
2026-09-24 11:50 UTC -
web:www.securityweek.com
Hackers are exploiting CVE - 2026 -59310, a critical vulnerability in VMware vCenter that leads to arbitrary code execution.
2026-09-24 11:50 UTC -
web:www.tenable.com
VMware vCenter contains a directory traversal vulnerability in the Syslog server. A malicious actor with network access to vCenter may exploit this issue to execute arbitrary code.
2026-09-24 11:50 UTC -
web:anonhaven.com
CVE Details CVE ID CVE-2026-79310 Published Date Sep 23, 2026 Vendor Python Severity HIGH CVSS v3.1 Score 8.5
2026-09-25 10:07 UTC -
web:cvebrief.com
Remediation Immediate Action: Audit all applications utilizing web.py 0.76 and restrict write access to template directories to prevent unauthorized modification. Monitor vendor channels for an official patch , as no specific fixed version is currently documented.
2026-09-25 10:07 UTC -
web:cvetodo.com
CVE-2026-79310 is a Server-Side Template Injection (SSTI) vulnerability. Full technical analysis, mitigations , and exploit status — updated in real time.
2026-09-25 10:07 UTC -
web:integsec.com
Meta Description: CVE - 2026 -20310 is a critical Cisco SD-WAN path traversal flaw. Learn the business impact, affected versions, and how to protect your organization.
2026-09-25 10:07 UTC -
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 ...
2026-09-25 10:07 UTC -
web:security-tracker.debian.org
Notes check Search for package or bug name: Reporting problems
2026-09-25 10:07 UTC -
web:ubuntu.com
Description webpy web.py 0.76 is vulnerable to server-side template injection (SSTI). The template engine can be tricked into executing attacker-controlled template code that built-in security checks are designed to reject. When an application precompiles templates from a directory the attacker can write to and later renders them through the precompiled template loader, the sandbox is bypassed ...
2026-09-25 10:07 UTC -
web:www.aikido.dev
CVE remediation is fixing known flaws in the software you run. Why upgrading often fails, what remediation actually involves, and how backporting fixes it.
2026-09-25 10:07 UTC -
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.
2026-09-25 10:07 UTC
AI Forensic Analysis
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Raw JSON
The full cvelistV5 record. Download as CVE-2026-79310.json.
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