6.6

CVE-2025-24976: distribution

CVSS: 6.6v4.0MediumDeferred
AliasesCGA-23pc-9j8r-hh39CGA-3x4q-8f3f-4464CGA-6ppp-86gj-phg9
Published 11-02-2025Last modified 23-01-2026
Open JSON

Vulnerability summary

CVE-2025-24976 is a medium (CVSS 6.6) vulnerability in distribution. EPSS estimates a 0.35% chance of exploitation in the next 30 days, higher than 27.5% of scored vulnerabilities.

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.6/10
010
Medium · v4.0 (CVE.org)
EPSS score
0.35%
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 3
OPENSUSE-SU-2025:14889-1CGA-92RH-G2JC-P3WFCGA-96M3-MR7P-MX3F

Timeline

  1. 11-02-2025
    PublishedVulnerability first disclosed.
  2. 23-01-2026
    Last modifiedVulnerability information updated.

Description

Distribution is a toolkit to pack, ship, store, and deliver container content. Systems running registry versions 3.0.0-beta.1 through 3.0.0-rc.2 with token authentication enabled may be vulnerable to an issue in which token authentication allows an attacker to inject an untrusted signing key in a JSON web token (JWT). The issue lies in how the JSON web key (JWK) verification is performed. When a JWT contains a JWK header without a certificate chain, the code only checks if the KeyID (`kid`) matches one of the trusted keys, but doesn't verify that the actual key material matches. A fix for the issue is available at commit 5ea9aa028db65ca5665f6af2c20ecf9dc34e5fcd and expected to be a part of version 3.0.0-rc.3. There is no way to work around this issue without patching if the system requires token authentication.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.35%

Chance of exploitation in the next 30 days

Percentile

28%

Versus all other CVEs

30-day change

0.00 pp

From 0.35% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.35%

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

Chainguard36 products
  • harbor-2.12< 2.12.4-r43
  • harbor-2.12-exporter< 2.12.4-r43
  • harbor-2.12-jobservice< 2.12.4-r43
  • harbor-2.12-registryctl< 2.12.4-r43
  • harbor-2.13All versions (No fix recorded)
Wolfi8 products
  • harbor-2.14All versions (No fix recorded)
  • harbor-2.14-exporterAll versions (No fix recorded)
  • harbor-2.14-jobserviceAll versions (No fix recorded)
  • harbor-2.14-registryctlAll versions (No fix recorded)
  • kots< 1.124.3-r1
Distribution1 product
Github.com/distribution1 product
  • distributionAll versions (No fix recorded)

4 vendors · 46 products

References

5 links