8.8

CVE-2026-27775: gitea gitea open source git server Incorrect Authorization

CVSS: 8.8v3.1HighDeferred
AliasesGHSA-649p-mmhf-85c7GO-2026-6043
Published 03-07-2026Last modified 06-07-2026
Open JSON

Vulnerability summary

CVE-2026-27775 is a high (CVSS 8.8) Incorrect Authorization vulnerability in gitea gitea open source git server. EPSS estimates a 0.52% chance of exploitation in the next 30 days, higher than 43.1% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.52%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1 · Related 1
OPENSUSE-SU-2026:21483-1

Timeline

  1. 03-07-2026
    PublishedVulnerability first disclosed.
  2. 06-07-2026
    Last modifiedVulnerability information updated.

Description

Gitea 1.25.5 caches a branch-specific write-permission result across multiple refs in one pre-receive hook session, allowing a per-branch maintainer-edit grant to be reused for other refs and escalate to full repository write access.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.52%

Chance of exploitation in the next 30 days

Percentile

43%

Versus all other CVEs

30-day change

0.00 pp

From 0.52% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.52%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Code.gitea.io1 product
  • gitea< 1.26.3
Gitea1 product

2 vendors · 2 products

References

8 links