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9.3
CRITICAL CVSS 3.1
CVE-2026-25921
Gogs: Cross-repository LFS object overwrite via missing content hash verification
Overview
Description

Gogs is an open source self-hosted Git service. Prior to version 0.14.2, overwritable LFS object across different repos leads to supply-chain attack, all LFS objects are vulnerable to be maliciously overwritten by malicious attackers. This issue has been patched in version 0.14.2.

Details
INFO

Published Date :

March 5, 2026, 7:16 p.m.

Last Modified :

March 6, 2026, 2:02 p.m.

Remotely Exploit :

Yes !

Source :

[email protected]
Impact
Affected Products

The following products are affected by CVE-2026-25921 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Gogs gogs
: Total Affected Vendor : 1 | Products : 1
Scoring
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 CRITICAL [email protected]
Solution
Update Gogs to version 0.14.2 or later to prevent LFS object overwriting and supply-chain attacks.
  • Upgrade Gogs to version 0.14.2.
  • Verify LFS object integrity after upgrade.
  • Ensure all instances are updated promptly.
References
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-25921.

URL Resource
https://github.com/gogs/gogs/commit/81ee8836445ac888d99da8b652be7d5cbc5c4d5c Patch
https://github.com/gogs/gogs/pull/8166 Issue Tracking
https://github.com/gogs/gogs/releases/tag/v0.14.2 Release Notes
https://github.com/gogs/gogs/security/advisories/GHSA-cj4v-437j-jq4c Exploit Vendor Advisory Mitigation
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-25921 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-25921 weaknesses.

CAPEC-111: JSON Hijacking (aka JavaScript Hijacking) JSON Hijacking (aka JavaScript Hijacking) CAPEC-141: Cache Poisoning Cache Poisoning CAPEC-142: DNS Cache Poisoning DNS Cache Poisoning CAPEC-148: Content Spoofing Content Spoofing CAPEC-218: Spoofing of UDDI/ebXML Messages Spoofing of UDDI/ebXML Messages CAPEC-384: Application API Message Manipulation via Man-in-the-Middle Application API Message Manipulation via Man-in-the-Middle CAPEC-385: Transaction or Event Tampering via Application API Manipulation Transaction or Event Tampering via Application API Manipulation CAPEC-386: Application API Navigation Remapping Application API Navigation Remapping CAPEC-387: Navigation Remapping To Propagate Malicious Content Navigation Remapping To Propagate Malicious Content CAPEC-388: Application API Button Hijacking Application API Button Hijacking CAPEC-665: Exploitation of Thunderbolt Protection Flaws Exploitation of Thunderbolt Protection Flaws CAPEC-701: Browser in the Middle (BiTM) Browser in the Middle (BiTM)

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-25921 vulnerability anywhere in the article.

  • CybersecurityNews
Gogs Vulnerability Enables Attackers to Silently Overwrite Large File Storage Objects

Gogs Vulnerability Overwrite Large File Storage Objects A critical security flaw has been discovered in a popular open-source, self-hosted Git service, allowing attackers to overwrite Large File Stora ... Read more

Published Date: Mar 11, 2026 (2 weeks, 1 day ago)
  • Daily CyberSecurity
Critical 9.3 CVSS Flaw in Gogs Turns Repositories into Malware Delivery Vectors

The Gogs project, a popular self-hosted Git service prized for its simplicity and painless setup, has been hit by a critical security flaw that could turn trusted repositories into delivery vectors fo ... Read more

Published Date: Mar 10, 2026 (2 weeks, 2 days ago)

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2026-25921 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Initial Analysis by [email protected]

    Mar. 06, 2026

    Action Type Old Value New Value
    Added CPE Configuration OR *cpe:2.3:a:gogs:gogs:*:*:*:*:*:*:*:* versions up to (excluding) 0.14.2
    Added Reference Type GitHub, Inc.: https://github.com/gogs/gogs/commit/81ee8836445ac888d99da8b652be7d5cbc5c4d5c Types: Patch
    Added Reference Type GitHub, Inc.: https://github.com/gogs/gogs/pull/8166 Types: Issue Tracking
    Added Reference Type GitHub, Inc.: https://github.com/gogs/gogs/releases/tag/v0.14.2 Types: Release Notes
    Added Reference Type GitHub, Inc.: https://github.com/gogs/gogs/security/advisories/GHSA-cj4v-437j-jq4c Types: Exploit, Mitigation, Vendor Advisory
  • New CVE Received by [email protected]

    Mar. 05, 2026

    Action Type Old Value New Value
    Added Description Gogs is an open source self-hosted Git service. Prior to version 0.14.2, overwritable LFS object across different repos leads to supply-chain attack, all LFS objects are vulnerable to be maliciously overwritten by malicious attackers. This issue has been patched in version 0.14.2.
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:L
    Added CWE CWE-345
    Added Reference https://github.com/gogs/gogs/commit/81ee8836445ac888d99da8b652be7d5cbc5c4d5c
    Added Reference https://github.com/gogs/gogs/pull/8166
    Added Reference https://github.com/gogs/gogs/releases/tag/v0.14.2
    Added Reference https://github.com/gogs/gogs/security/advisories/GHSA-cj4v-437j-jq4c
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CVSS
Vulnerability Scoring Details
Base CVSS Score: 9.3
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact