Gogs
CVE-2026-26195
MEDIUM
GHSA-vgvf-m4fw-938j
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Output encoding, context-aware escaping
MITRE ATT&CK
2 techniques across 2 tactics: Initial Access, Execution The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS 6.1 (MEDIUM). Attack vector: Network. Complexity: Low. Privileges required: None. User interaction: Required. |
| Exploit ScenarioDerived | An attacker could exploit this vulnerability to compromise the affected system. |
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Alert meAnalysisAIv1 – Mar 12, 2026
Stored cross-site scripting in Gogs prior to version 0.14.2 allows unauthenticated attackers to inject malicious scripts through template rendering of user-controlled data, potentially affecting all users viewing compromised content. The vulnerability exploits unsafe handling of data URLs combined with permissive sanitization, enabling attackers to steal session cookies, deface pages, or perform actions on behalf of victims. A patch is available in version 0.14.2 and later.
Earlier versions of this analysis (1)
Gogs is an open source self-hosted Git service. Prior to version 0.14.2, stored xss is still possible through unsafe template rendering that mixes user input with safe plus permissive sanitizer handling of data urls. [CVSS 6.1 MEDIUM]
RemediationAI
A vendor patch is available — apply it immediately. Fixed in version 0.14.2.. Implement output encoding and Content Security Policy headers. Restrict network access to the affected service where possible.
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in go
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
Classified as CWE-79 (Cross-site Scripting (XSS)). Affects Gogs. Gogs is an open source self-hosted Git service. Prior to version 0.14.2, stored xss is still possible through unsafe template rendering that mixes user input with safe plus permissive sanitizer handling of data urls. This issue has been patched in version 0.14.2.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Primary rating from GitHub Advisory.
CVSS VectorGitHub Advisory
Lifecycle Timeline
2DescriptionGitHub Advisory
Gogs is an open source self-hosted Git service. Prior to version 0.14.2, stored xss is still possible through unsafe template rendering that mixes user input with safe plus permissive sanitizer handling of data urls. This issue has been patched in version 0.14.2.
Executive ViewAI
Organizations using Gogs should be aware of moderate risk from CVE-2026-26195, a cross-site scripting vulnerability rated CVSS 6.1. Attackers could inject scripts to steal sessions or perform actions as authenticated users. A patch is available and should be applied during regular vulnerability management.
Apply vendor patch. If patching is delayed: implement CSP headers, enable HttpOnly cookies, deploy WAF XSS rules.
Threat Intelligence Overview
NVD
CVE.org
EPSS
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.
Affected Products (CPE)GitHub Advisory
Related Vulnerabilities in Gogs Supply Chain and XSS Attacks
View all 5Code execution on Gogs servers is possible through improper symbolic-link handling in the repository file editor's PutCo
Multiple SQL injection vulnerabilities in Gogs (aka Go Git Service) 0.3.1-9 through 0.5.x before 0.5.6.1105 Beta allow r
The git hook feature in Gogs 0.5.5 through 0.12.2 allows for authenticated remote code execution. Rated high severity (C
Gogs through 0.13.0 allows argument injection during the previewing of changes. Rated critical severity (CVSS 9.9), this
The built-in SSH server of Gogs through 0.13.0 allows argument injection in internal/ssh/ssh.go, leading to remote code
Gogs self-hosted Git service v0.13.3 has a command injection vulnerability enabling remote code execution through crafte
Unauthenticated file upload in Gogs self-hosted Git service 0.13.4 and below. Default configuration exposes file upload
OS Command Injection in GitHub repository gogs/gogs prior to 0.12.9. Rated critical severity (CVSS 9.8), this vulnerabil
Gogs 0.11.66 allows remote code execution because it does not properly validate session IDs, as demonstrated by a ".." s
Path Traversal in GitHub repository gogs/gogs prior to 0.12.9. Rated critical severity (CVSS 9.1), this vulnerability is
Missing Authorization in GitHub repository gogs/gogs prior to 0.12.5. Rated critical severity (CVSS 9.1), this vulnerabi
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