[UPDATE] [medium] Gitea: Multiple vulnerabilities
An attacker can exploit multiple vulnerabilities in Gitea to disclose information, bypass security precautions, and conduct a cross-site scripting attack.
CSIRTS triage
- 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
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-2026-225550.43% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 35% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-277800.64% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 48% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-287370.43% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 36% of all EPSS-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.
- highCVE-2026-28737: Gitea versions from 1.25.0 before 1.26.0 allow stored cross-site scripting through the extensi…nvd
- criticalCVE-2026-27780: Gitea versions before 1.26.0 do not fail closed on bufio.Scanner errors while processing pre-r…nvd
- highCVE-2026-22555: Gitea versions before 1.26.0 allow API users to fork a repository into an organization without…nvd
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