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01 Record

CVE-2026-20897

Gitea Git LFS Lock Deletion Broken Access Control (Cross-Repo IDOR)

CriticalPUBLISHEDCNA: Gitea
CNA base score9.1 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
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02 Description

Gitea Git LFS Lock Deletion Broken Access Control (Cross-Repo IDOR)

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.45% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 39.2% of scored records. A rank, not a probability.
NVD base score
9.1 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
NVD analysis status
Modified. NVD last modified this record on 2026-07-15.
Red Hat severity
Critical. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-01-22 22:01Z9 MO AGO
Last updated
2026-07-15 01:20Z3 MO AGO
Reserved
2026-01-08
Assigning CNA
Gitea
Record state
PUBLISHED
Severity
Critical (CVSS 9.1)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weaknesses
  • CWE-284Improper Access ControlPillar
  • CWE-639Authorization Bypass Through User-Controlled KeyBase
Data version
5.2
Document digest
e40cd4f7b3460441b5dbd334bf8c0ab60ad34b17ce9fe881e8067b382cb9c5b8

05 Affected products

VendorProductVersionsPlatforms
GiteaGitea Open Source Git Server0 to 1.25.3—

06 References