CVE-2026-21505

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited 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

0.19% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 9.2% of scored records. A rank, not a probability.

NVD base score

7.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

NVD analysis status

Analyzed. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

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.

Published

2026-01-07 17:10Z8 MO AGO

Last updated

2026-01-08 19:18Z7 MO AGO

Reserved

2025-12-29

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Medium (CVSS 5.5)

CNA CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Weaknesses

• CWE-20Improper Input ValidationClass
• CWE-843Access of Resource Using Incompatible Type ('Type Confusion')Base

Data version

5.2

Document digest

79c784d72bfd15ee555330f4cdab1902b41ce3710bbbc1b28977318b5754da3a

• github.comhttps://github.com/InternationalColorConsortium/iccDEV/security/advisories/GHSA-j577-8285-qrf9x_refsource_CONFIRM
• github.comhttps://github.com/InternationalColorConsortium/iccDEV/issues/361x_refsource_MISC
• github.comhttps://github.com/InternationalColorConsortium/iccDEV/pull/419x_refsource_MISC
• github.comhttps://github.com/InternationalColorConsortium/iccDEV/commit/3bbe2088b2796cf0aa4f7fa19f7ccd9ad1c7aba5x_refsource_MISC
• github.comhttps://github.com/InternationalColorConsortium/iccDEV/commit/b1bb72fc3e9442ee1355aabae7314bb7d3fc9d41x_refsource_MISC