5.9

CVE-2026-57886: gitea gitea open source git server

CVSS: 5.9v3.1MediumDeferred
AliasesGHSA-6c6r-5xr4-cr5mGO-2026-6035
Published 13-08-2026Last modified 14-08-2026
Open JSON

Vulnerability summary

CVE-2026-57886 is a medium (CVSS 5.9) vulnerability in gitea gitea open source git server. EPSS estimates a 0.31% chance of exploitation in the next 30 days, higher than 22.6% of scored vulnerabilities.

Overall risk
24/100
0100
Low · default modelHow is this calculated?
CVSS score
5.9/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.31%
0%100%
Low · +0.06 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. 13-08-2026
    PublishedVulnerability first disclosed.
  2. 14-08-2026
    Last modifiedVulnerability information updated.

Description

Cross-repository issue/comment attachment re-linking can expose private attachment content

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.31%

Chance of exploitation in the next 30 days

Percentile

23%

Versus all other CVEs

30-day change

+0.06 pp

From 0.25% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.31%

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< 1.27.0
Gitea1 product
Go1 product
  • gitea.dev< 1.27.0

3 vendors · 3 products

References

8 links