9.3

CVE-2026-25921: Gogs: Cross-repository LFS object overwrite via missing content hash verification

Analyzed
AliasesGHSA-cj4v-437j-jq4cGO-2026-4616
Published 05-03-2026Last modified 06-03-2026

Vulnerability summary

CVE-2026-25921 is a critical (CVSS 9.3) vulnerability in gogs. EPSS estimates a 0.37% chance of exploitation in the next 30 days, higher than 31.2% of scored vulnerabilities. 1 public exploit is recorded.

Priority
Prioritisepublic exploit

Public exploit (GitHub, Date unknown)

Source freshness unavailable

How is this decided?
CVSS score
9.3/10
010
Critical · v3.1 (CVE.org)
EPSS score
0.37%
0%100%
Low · +0.09 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1github

Advisory lineage

Upstream 0 · Downstream 2 · Related 2
OPENSUSE-SU-2026:21483-1SUSE-SU-2026:1042-1

Timeline

  1. 05-03-2026
    PublishedVulnerability first disclosed.
  2. 06-03-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.37%

Chance of exploitation in the next 30 days

Percentile

31%

Versus all other CVEs

30-day change

Increase +0.09 pp

From 0.29% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

1 found
  • githubUnverified

    Gogs

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Gogs1 product
Gogs.io1 product
  • gogs< 0.14.2 | All versions (No fix recorded)

2 vendors · 2 products

References

6 links