CVE-2026-52812

HIGHPre-NVD 7.17.1—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2%, top 85% of all CVEs by exploit prediction. 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: epss, secondary
7.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 7.1Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Gogs is an open source self-hosted Git service. Prior to 0.14.3, Git LFS storage is content-addressed by OID alone (///) but per-repo authorization lives in the lfs_object table keyed (repo_id, oid). serveUpload skips re-uploading when the OID file already exists on disk and inserts a new (repo_id, oid) row pointing at it without verifying the request body hashes to the OID being claimed. Any user with write access to one repo can bind their repo to an OID owned by a private repo and download the original bytes via their own download endpoint. This vulnerability is fixed in 0.14.3.

CVSS v3
7.1
EG Score
7.1HIGHmedium confidence
EG Risk
37
EG Risk 37/100

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 computed
Severity71% × 45%
Exploitation0% × 40%
Automatability30% × 15%
EPSS PROB
0.2%
EPSS %ILE
13th
KEV
Not listed

Published

June 23, 2026

Last Modified

June 26, 2026

Advisory Details (4)

Auto-updated Jun 24, 2026
🔬 Proof of concept available. Patch available. Sources: github_commit, github_pr, github_release, github.
githubMentions a patch (unverified)🟡 PoC Available

LFS dedupe path leaks private repo content across tenants · Advisory · gogs/gogs · GitHub

https://github.com/gogs/gogs/security/advisories/GHSA-6p9m-q3jp-47h4
github_release Patch Available

0.14.3

Patch available: gogs/gogs v0.14.3

https://github.com/gogs/gogs/releases/tag/v0.14.3
github_pr

security: verify content hash on LFS dedupe shortcut

Fix merged in gogs/gogs PR #8333 on 2026-06-07 — awaiting tagged release

https://github.com/gogs/gogs/pull/8333
github_commit

commit f35a767af74e (gogs/gogs)

Fix landed in gogs/gogs commit f35a767af74e — awaiting tagged release

https://github.com/gogs/gogs/commit/f35a767af74e05342bafc6fdda02c791816426f8

Vendor Advisories for CVE-2026-52812(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
Go(1)
PackageVulnerable rangeFix by version rangeDependents
gogs.io/gogs—
  • every version up to 0.14.3: fixed in 0.14.3
  • every version on: no fix on record
—

Weakness Classification(3)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 8× in last 7d / 27× 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.

Showing the most recent 100 of 139 total refreshes for this CVE.

  1. 2026-10-09 20:07 UTCEPSS rescore
  2. 2026-10-08 17:12 UTCEPSS rescore
  3. 2026-10-08 04:24 UTCOSV refresh
  4. 2026-10-07 23:48 UTCEPSS rescore
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  20. 2026-09-18 10:28 UTCEG score recompute
  21. 2026-09-16 14:08 UTCEPSS rescore
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  24. 2026-09-13 16:47 UTCEPSS rescore
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  1. 2026-09-11 14:53 UTCEPSS rescore
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  10. 2026-08-30 20:27 UTCEG score recompute
  11. 2026-08-30 19:17 UTCEPSS rescore
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  17. 2026-08-25 00:59 UTCEG score recompute
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  22. 2026-08-21 23:49 UTCEPSS rescore
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  25. 2026-08-20 07:47 UTCEG score recompute
  26. 2026-08-19 17:04 UTCEPSS rescore
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  28. 2026-08-18 13:48 UTCEPSS rescore
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  30. 2026-08-16 20:13 UTCEG score recompute
  31. 2026-08-16 14:56 UTCEPSS rescore
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  39. 2026-08-12 13:51 UTCEPSS rescore
  40. 2026-08-11 17:29 UTCEG score recompute
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  43. 2026-08-09 21:16 UTCEG score recompute
  44. 2026-08-09 13:46 UTCEPSS rescore
  45. 2026-08-08 23:11 UTCEG score recompute
  46. 2026-08-08 16:37 UTCEPSS rescore
  47. 2026-08-08 01:05 UTCEG score recompute
  48. 2026-08-06 15:57 UTCEG score recompute
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  61. 2026-07-30 17:55 UTCEG score recompute
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  63. 2026-07-30 02:37 UTCEG score recompute
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  66. 2026-07-28 15:37 UTCEPSS rescore
  67. 2026-07-27 17:48 UTCEG score recompute
  68. 2026-07-26 15:54 UTCEG score recompute
  69. 2026-07-26 14:54 UTCEPSS rescore
  70. 2026-07-25 14:18 UTCEPSS rescore
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  72. 2026-07-23 14:18 UTCEPSS rescore
  73. 2026-07-23 03:19 UTCEG score recompute
  74. 2026-07-22 14:08 UTCEPSS rescore
  75. 2026-07-21 15:25 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2026-52812?
CVE-2026-52812 is a high vulnerability published on June 23, 2026. Gogs is an open source self-hosted Git service. Prior to 0.14.3, Git LFS storage is content-addressed by OID alone (<LFS-root>/<oid[0]>/<oid[1]>/<oid>) but per-repo authorization lives in the lfsobject table keyed (repoid, oid). serveUpload skips re-uploading when the OID file already exists on…
When was CVE-2026-52812 disclosed?
CVE-2026-52812 was first published on June 23, 2026, with the most recent update on June 26, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-52812 actively exploited?
CVE-2026-52812 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (13th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-52812?
CVE-2026-52812 has a CVSS base score of 7.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-52812?
A fix for CVE-2026-52812 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-52812 are linked in the Vendor Advisories panel on this page.

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