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.
CVE-2026-25921
CRITICALPre-NVD 9.39.3
EchelonGraph scoreLOW confidence
This critical-severity CVE scores 9.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit-prediction score not yet available (the EPSS model rescores nightly; freshly-published CVEs typically appear within 48 hours). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: secondary
9.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.3Exploit: None knownExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 9.3
- EG Score
- 9.3(low)
- EG Risk
- 46(Track)EG Risk 46/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity93% × 45%Exploitation0% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 25%
- KEV
- Not listed
Published
March 5, 2026
Last Modified
June 17, 2026
Advisory Details (4)
Auto-updated Jul 27, 2026🔬 Proof of concept available. Patch available. Sources: github_release, github, github_commit, github_pr.
github Patch Available🟡 PoC Available
Cross-repository LFS object overwrite via missing content hash verification · Advisory · gogs/gogs · GitHub
https://github.com/gogs/gogs/security/advisories/GHSA-cj4v-437j-jq4cgithub_release Patch Available
0.14.2
Patch available: gogs/gogs v0.14.2
https://github.com/gogs/gogs/releases/tag/v0.14.2github_pr
lfs: verify content hash and prevent object overwrite
Fix merged in gogs/gogs PR #8166 on 2026-02-08 — awaiting tagged release
https://github.com/gogs/gogs/pull/8166github_commit
commit 81ee8836445a (gogs/gogs)
Fix landed in gogs/gogs commit 81ee8836445a — awaiting tagged release
https://github.com/gogs/gogs/commit/81ee8836445ac888d99da8b652be7d5cbc5c4d5cWeakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 1× in last 7d / 1× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-27 13:51 UTCEG score recompute
Related CVEs(same CWE)
Frequently asked(5)
What is CVE-2026-25921?
CVE-2026-25921 is a critical vulnerability published on March 5, 2026. 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.
When was CVE-2026-25921 disclosed?
CVE-2026-25921 was first published in the National Vulnerability Database on March 5, 2026, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-25921 actively exploited?
CVE-2026-25921 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 74.9% of all scored CVEs.
What is the CVSS score of CVE-2026-25921?
CVE-2026-25921 has a CVSS v3 base score of 9.3 (NVD). The EG score is currently aggregating — additional source signals are being incorporated as they become available..
How do I remediate CVE-2026-25921?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-25921, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-25921
Is Your Infrastructure Affected by CVE-2026-25921?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.