Threadlinqs IntelligenceStart free

VulnerabilityCVE-2026-58426Published 2026-07-03

CVE-2026-58426 — Gitea Open Source Git Server

criticalPublic exploit1 PoC repo

As of 2026-07-06, CVE-2026-58426 is a CRITICAL-severity vulnerability in Gitea Open Source Git Server, CVSS v3.1 9.6, EPSS 0.3% (21.0th percentile). Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2026-58426, most recently “Gitea CVE-2026-58443: Authorization Bypass in Pull Request Update API Enables Private Repo Access”.

CVSS v3.1
9.6/10Critical
EPSS
0.3%Higher than 21.0% of scored CVEs
CISA KEV
NoNot in the KEV catalog
Tracked threats
1Campaigns referencing it
Priority
7.6/10Threadlinqs triage score
Published
Updated 2026-07-06
CVSS v3.1 9.6 (CRITICAL) · EPSS 0.3% (higher than 21.0% of all scored CVEs) · Priority 7.6/10 · Published 2026-07-03

Last updated:

What is CVE-2026-58426?

Gitea Actions Artifacts V4 signed URL HMAC ambiguity allows cross-repository artifact read and cross-task upload-state write

The record classifies CVE-2026-58426 under weakness class CWE-347. Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs low-privilege credentials, needs no user interaction, and has high impact on confidentiality, integrity. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 109 days ago.

Severity and exploitation probability

CVSS v3.1 base score
9.6 — CRITICAL
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
EPSS (FIRST)
0.3% probability of exploitation in the next 30 days, higher than 21.0% of all scored CVEs
CISA KEV
Not listed in the CISA Known Exploited Vulnerabilities catalog
Threadlinqs priority
7.6/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
Published
2026-07-03, last modified 2026-07-06

Is CVE-2026-58426 being exploited?

Weaponised exploit code for CVE-2026-58426 is publicly available. 1 public proof-of-concept repository is tracked for this identifier. It currently carries a trending score of 23 in the Threadlinqs vulnerability feed.

Affected products and versions

  • Gitea: Open Source Git Server

Affected software packages:

  • go:code.gitea.io/gitea — patched in 1.26.2

How to fix CVE-2026-58426

Fixed versions are recorded for 1 package: go:code.gitea.io/gitea 1.26.2. No vendor patch reference has been recorded for CVE-2026-58426 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

Threat activity tracking CVE-2026-58426

1 tracked threat in the Threadlinqs corpus references CVE-2026-58426, either in the campaign’s CVE list or as an indicator on the campaign record.

Sources

Enriched from CVE.org, NVD, FIRST EPSS, GitHub Security Advisories, public proof-of-concept repositories. Last verified by Threadlinqs on . This product uses the NVD API but is not endorsed or certified by the NVD.

Vendor advisory and patch