CVE-2026-123507
📛 CVE Title
Vikunja 0.24.0 before 2.7.1 Denial of Service via Nil Bucket Filter
Description
Vikunja from 0.24.0 before 2.7.1 contains a nil pointer dereference vulnerability that allows project admins to break project views by saving a filter-mode bucket configuration with a null filter. Because validateProjectViewFilters skips nil entries, every subsequent read of the view panics in kanban and task collection code, returning HTTP 500 to all project members.
Overview
- State
- PUBLISHED
- Assigner (CNA)
- VulnCheck
- CVSS severity
- MEDIUM
- CVSS score
- 5.1 / 10
- CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N- Effective score
- 5.1 / 10 MEDIUM source: CNA overview
- CWE(s)
-
CWE-476 - Reserved
- 2026-11-06
- Published
- 2026-11-08 01:37 UTC
- Last updated
- 2026-11-08 01:37 UTC
- Source
- https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/123xxx/CVE-2026-123507.json
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-2026-119392
EUVD enrichment is queued; refresh the page in a few seconds.
Affected products (1)
| Vendor | Product | Versions | Platforms |
|---|---|---|---|
| go-vikunja | vikunja |
0.24.0 (affected),
2.7.1 (unaffected)
|
— |
Vendor references (2)
References embedded in the original CVE record by the assigning CNA.
- GitHub Security Advisory (GHSA-hm4w-h7v8-ch43) vendor-advisory
- VulnCheck Advisory: Vikunja 0.24.0 before 2.7.1 Denial of Service via Nil Bucket Filter third-party-advisory
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.
Remediations (10)
-
web:app.opencve.io
Explore the latest vulnerabilities and security issues in the CVE database
2026-11-08 11:30 UTC -
web:blogs.oracle.com
For more information about the Critical Patch Update program, see the security vulnerability remediation practices page located on the Oracle Trust Center.
2026-11-08 11:30 UTC -
web:cyberupdates365.com
Track critical CVE vulnerabilities 2026 with verified enterprise patch guides. Fix zero-days across VMware, WordPress, Windows, and cloud infrastructure.
2026-11-08 11:30 UTC -
web:sec.cloudapps.cisco.com
As part of Cisco's ongoing commitment to proactive security and product quality, engineering teams conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities. These vulnerabilities were found during internal testing and are not known to be actively exploited. To assist customers in patching ...
2026-11-08 11:30 UTC -
web:support.sap.com
On 13 th of October 2026 , SAP security patch day saw the release of 16 new security notes and 4 GitHub security advisories. There are 2 updates to previously released security notes.
2026-11-08 11:30 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.
2026-11-08 11:30 UTC -
web:www.dell.com
Dell OpenManage Enterprise remediation is available for multiple security vulnerabilities that may be exploited by malicious users to compromise the affected system.
2026-11-08 11:30 UTC -
web:www.openhands.dev
Compare 8 automated vulnerability remediation tools for 2026 on fixes, prioritization, integrations, and deployment control.
2026-11-08 11:30 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.
2026-11-08 11:30 UTC -
web:www.oracle.com
Prior Critical Patch Update and Critical Security Patch Update advisories should be reviewed for information regarding earlier published security patches. Refer to Critical Patch Updates, Critical Security Patch Updates, Security Alerts and Bulletins for information about Oracle Security advisories.
2026-11-08 11:30 UTC
AI Forensic Analysis
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Raw JSON
The full cvelistV5 record. Download as CVE-2026-123507.json.
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"packageURL": "pkg:golang/code.vikunja.io/api",
"product": "vikunja",
"vendor": "go-vikunja",
"versions": [
{
"lessThan": "2.7.1",
"status": "affected",
"version": "0.24.0",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "2.7.1",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
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"versionEndExcluding": "2.7.1",
"versionStartIncluding": "0.24.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"datePublic": "2026-10-22T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "Vikunja from 0.24.0 before 2.7.1 contains a nil pointer dereference vulnerability that allows project admins to break project views by saving a filter-mode bucket configuration with a null filter. Because validateProjectViewFilters skips nil entries, every subsequent read of the view panics in kanban and task collection code, returning HTTP 500 to all project members."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 5.1,
"baseSeverity": "MEDIUM",
"privilegesRequired": "HIGH",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
"version": "4.0",
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"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE"
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{
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"version": "3.1"
},
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],
"problemTypes": [
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"descriptions": [
{
"cweId": "CWE-476",
"description": "NULL Pointer Dereference",
"lang": "en",
"type": "CWE"
}
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}
],
"providerMetadata": {
"dateUpdated": "2026-11-08T01:37:21.778Z",
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"shortName": "VulnCheck"
},
"references": [
{
"name": "GitHub Security Advisory (GHSA-hm4w-h7v8-ch43)",
"tags": [
"vendor-advisory"
],
"url": "https://github.com/go-vikunja/vikunja/security/advisories/GHSA-hm4w-h7v8-ch43"
},
{
"name": "VulnCheck Advisory: Vikunja 0.24.0 before 2.7.1 Denial of Service via Nil Bucket Filter",
"tags": [
"third-party-advisory"
],
"url": "https://www.vulncheck.com/advisories/vikunja-0.24.0-before-2.7.1-denial-of-service-via-nil-bucket-filter"
}
],
"title": "Vikunja 0.24.0 before 2.7.1 Denial of Service via Nil Bucket Filter",
"x_generator": {
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}
}
},
"cveMetadata": {
"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"assignerShortName": "VulnCheck",
"cveId": "CVE-2026-123507",
"datePublished": "2026-11-08T01:37:21.778Z",
"dateReserved": "2026-11-06T00:46:28.480Z",
"dateUpdated": "2026-11-08T01:37:21.778Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}