CVE-2026-58431

MEDIUMPre-NVD 4.34.3
EchelonGraph scoreLOW confidence

This medium-severity CVE scores 4.3 under the CNA's CVSS (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: cna:github_m
4.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: —CVSS: 4.3Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Gitea: Public-only API token restriction is not enforced on team API routes

Summary

Gitea's /api/v1/teams/{id} API routes do not correctly enforce the public-only access token restriction.

A public-only token is intended to limit API access to public repositories and public organizations. However, several team API routes continue to return private team repository metadata and private team activity feed entries when called with a public-only token.

Details

The /api/v1/teams/{teamid} route group uses:

orgAssignment(false, true)

This loads ctx.Org.Team, but does not load ctx.Org.Organization.

The checkTokenPublicOnly middleware checks organization visibility through ctx.Org.Organization. When ctx.Org.Organization is nil, the organization visibility check silently passes.

In addition, the team repository handlers return repositories without applying repository-level public-only filtering:

repo_model.GetTeamRepositories(...)
convert.ToRepo(...)

They do not call:

ctx.TokenCanAccessRepo(repo)

The team activity feed handler also sets:

IncludePrivate: true

but does not apply:

opts.ApplyPublicOnly(ctx.PublicOnly)

PoC

Vulnerability is verified on latest gitea release (1.26.2) and nightly build. Frist, create a public-only organization-scoped token for a user who is a member of a team in a private org with private repositories:

Use the returned token to request team repositories:

Expected result: Private repositories should be hidden or rejected for a public-only token. Actual result: Private team repository metadata is returned.

The team activity feed endpoint can be tested similarly:

Impact

A public-only token can access private team resources that should be hidden from that token.

CVSS v3
4.3
EG Score
4.3(low)
EG Risk
24(Track)
EG Risk 24/100SSVC: 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 computed
Severity43% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
—
KEV
Not listed

Published

July 21, 2026

Last Modified

July 21, 2026

Vendor Advisories for CVE-2026-58431(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 rangeFixed inDependents
gitea.dev—1.27.0—

Data Freshness Timeline

(refreshed 2× in last 7d / 2× 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.

  1. 2026-07-23 03:21 UTCEG score recompute
  2. 2026-07-21 22:19 UTCEG score recompute

Frequently asked(4)

What is CVE-2026-58431?
CVE-2026-58431 is a medium vulnerability published on July 21, 2026. Gitea: Public-only API token restriction is not enforced on team API routes Summary Gitea's /api/v1/teams/{id} API routes do not correctly enforce the public-only access token restriction. A public-only token is intended to limit API access to public repositories and public organizations. However,…
When was CVE-2026-58431 disclosed?
CVE-2026-58431 was first published in the National Vulnerability Database on July 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
What is the CVSS score of CVE-2026-58431?
CVE-2026-58431 has a CVSS v4.0 base score of 4.3 (CNA self-assessment; NVD's own analysis pending). The EG score is currently aggregating — additional source signals are being incorporated as they become available..
How do I remediate CVE-2026-58431?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-58431, 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

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