CVE-2026-27779

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-07-03. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 4 sources updated this week
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.5Exploit: NoneExposed: 0

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

Gitea versions before 1.25.5 accept malformed or injected forwarded-proto values when detecting public URLs, allowing spoofed canonical URL generation.

CVSS v3
7.5
EG Score
7.5(high)
EPSS
6.2%
KEV
Not listed

Published

July 3, 2026

Last Modified

July 6, 2026

Advisory Details (4)

Auto-updated Jul 6, 2026
Patch available. Sources: github_pr, github_release.
generic

Gitea 1.25.5 is released | Gitea Blog

https://blog.gitea.com/release-of-1.25.5/
github_release Patch Available

v1.25.5

Patch available: go-gitea/gitea v1.25.5

https://github.com/go-gitea/gitea/releases/tag/v1.25.5
github_pr

Fix forwarded proto handling for public URL detection (#36810)

Fix merged in go-gitea/gitea PR #36836 on 2026-03-06 — awaiting tagged release

https://github.com/go-gitea/gitea/pull/36836
github_pr

Fix forwarded proto handling for public URL detection

Fix merged in go-gitea/gitea PR #36810 on 2026-03-05 — awaiting tagged release

https://github.com/go-gitea/gitea/pull/36810

Vendor Advisories for CVE-2026-27779(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 10× 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 02:58 UTCEG score recompute▲ 7.50
  2. 2026-07-07 02:58 UTCGHSA enrichment
  3. 2026-07-06 16:27 UTCEPSS rescore
  4. 2026-07-06 16:27 UTCEPSS rescore
  5. 2026-07-06 15:36 UTCMITRE cvelistV5CVSS v3 → 7.5 · severity → HIGH
  6. 2026-07-06 02:23 UTCEPSS rescore
  7. 2026-07-06 02:23 UTCEPSS rescore
  8. 2026-07-05 02:30 UTCEPSS rescore
  9. 2026-07-03 22:29 UTCEG score recompute
  10. 2026-07-03 22:29 UTCGHSA enrichment

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-27779?
CVE-2026-27779 is a high vulnerability published on July 3, 2026. Gitea versions before 1.25.5 accept malformed or injected forwarded-proto values when detecting public URLs, allowing spoofed canonical URL generation.
When was CVE-2026-27779 disclosed?
CVE-2026-27779 was first published in the National Vulnerability Database on July 3, 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-2026-27779 actively exploited?
CVE-2026-27779 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 6.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-27779?
CVE-2026-27779 has a CVSS v3.1 base score of 7.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-27779?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-27779, 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-2026-27779

Explore →

Is Your Infrastructure Affected by CVE-2026-27779?

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

Start Free Scan →Browse All CVEs