[UPDATE] [medium] Gitea: Multiple vulnerabilities

mediumCVE-2026-22555 CVE-2026-27780 CVE-2026-28737

An attacker can exploit multiple vulnerabilities in Gitea to disclose information, bypass security precautions, and conduct a cross-site scripting attack.

CSIRTS triage

vendor: Gitea product: Gitea Information disclosure Authentication bypass Cross-site scripting

What: Multiple vulnerabilities allow attackers to disclose information, bypass security precautions, and conduct cross-site scripting attacks.
Who is affected: Deployments of Gitea are affected.
Urgency: Remediation is medium urgency due to the potential for information disclosure and security bypass.
Action: Update to the latest version of Gitea to mitigate these vulnerabilities.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source: CERT-Bund (BSI) Security Advisories (DE · national-cert · site)
Severity: medium
Published: 2026-07-06
Exploitation: Not in CISA KEV at last sync
Language: Machine-translated to English — verify against the original

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-1172

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-225550.30% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 22% of all scored CVEs.
Low exploitation riskCVE-2026-277800.47% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 38% of all scored CVEs.
Low exploitation riskCVE-2026-287370.34% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 26% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-22555	coverage & exploitation status	NVD · CVE.org
CVE-2026-27780	coverage & exploitation status	NVD · CVE.org
CVE-2026-28737	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

Recent advisories for Gitea

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

high[UPDATE] [high] Gitea: Vulnerability allows bypassing of security measurescert-bund · 2026-07-09
medium[UPDATE] [medium] Gitea: Multiple vulnerabilitiescert-bund · 2026-07-08
high[UPDATE] [high] Gitea: Multiple vulnerabilitiescert-bund · 2026-07-06
high[UPDATE] [high] Gitea: Multiple vulnerabilitiescert-bund · 2026-07-06
high[UPDATE] [high] Gitea: Multiple vulnerabilitiescert-bund · 2026-07-06
medium[UPDATE] [medium] Gitea: Multiple vulnerabilitiescert-bund · 2026-07-06