CVE-2026-27783

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 4.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 80% 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
Elevated
4.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 4.3Exploit: NoneExposed: 0

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

Gitea versions up to and including 1.26.1 do not enforce repository-unit authorization on issue-template API endpoints.

CVSS v3
4.3
EG Score
4.3(medium)
EPSS
20.2%
KEV
Not listed

Published

June 16, 2026

Last Modified

July 6, 2026

Advisory Details (5)

Auto-updated Jul 3, 2026
🔬 Proof of concept available. Patch available. Sources: github_pr, github_release, github.
github Patch Available🟡 PoC Available

Missing repository-unit authorization on issue-template API endpoints · Advisory · go-gitea/gitea · GitHub

https://github.com/go-gitea/gitea/security/advisories/GHSA-3fwp-p5rj-2pxf
github_release Patch Available

v1.26.2

Patch available: go-gitea/gitea v1.26.2

https://github.com/go-gitea/gitea/releases/tag/v1.26.2
github_pr

fix(permissions): Fix reading permission (#37769)

Fix merged in go-gitea/gitea PR #37781 on 2026-05-19 — awaiting tagged release

https://github.com/go-gitea/gitea/pull/37781
github_pr

fix(permissions): Fix reading permission

Fix merged in go-gitea/gitea PR #37769 on 2026-05-19 — awaiting tagged release

https://github.com/go-gitea/gitea/pull/37769
generic

Gitea 1.26.2 is released | Gitea Blog

https://blog.gitea.com/release-of-1.26.2/

Vendor Advisories for CVE-2026-27783(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
code.gitea.io/gitea—1.26.2—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 25× 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. 2026-07-07 02:01 UTCEG score recompute
  2. 2026-07-06 16:27 UTCEPSS rescore
  3. 2026-07-06 16:27 UTCEPSS rescore
  4. 2026-07-06 02:23 UTCEPSS rescore
  5. 2026-07-06 02:23 UTCEPSS rescore
  6. 2026-07-06 00:33 UTCEG score recompute
  7. 2026-07-05 02:30 UTCEPSS rescore
  8. 2026-07-04 22:58 UTCEG score recompute
  9. 2026-07-03 21:39 UTCEG score recompute
  10. 2026-07-02 20:18 UTCEG score recompute
  11. 2026-07-01 18:58 UTCEG score recompute
  12. 2026-06-30 17:38 UTCEG score recompute
  13. 2026-06-29 16:18 UTCEG score recompute
  14. 2026-06-28 14:58 UTCEG score recompute
  15. 2026-06-27 13:38 UTCEG score recompute
  16. 2026-06-26 12:18 UTCEG score recompute
  17. 2026-06-25 10:58 UTCEG score recompute
  18. 2026-06-24 09:37 UTCEG score recompute
  19. 2026-06-23 08:13 UTCEG score recompute
  20. 2026-06-22 06:53 UTCEG score recompute
  21. 2026-06-21 05:17 UTCEG score recompute
  22. 2026-06-20 03:48 UTCEG score recompute
  23. 2026-06-19 02:24 UTCEG score recompute
  24. 2026-06-18 01:04 UTCEG score recompute
  25. 2026-06-16 23:44 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-27783?
CVE-2026-27783 is a medium vulnerability published on June 16, 2026. Gitea versions up to and including 1.26.1 do not enforce repository-unit authorization on issue-template API endpoints.
When was CVE-2026-27783 disclosed?
CVE-2026-27783 was first published in the National Vulnerability Database on June 16, 2026, with the most recent update on July 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-27783 actively exploited?
CVE-2026-27783 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 20.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-27783?
CVE-2026-27783 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2026-27783?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-27783, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-27783

Explore →

Is Your Infrastructure Affected by CVE-2026-27783?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs