CVE-2026-26963

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.
• 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

0.14% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 3.3% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

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

Red Hat severity

Moderate. 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.

Published

2026-02-19 23:38Z8 MO AGO

Last updated

2026-02-20 15:36Z8 MO AGO

Reserved

2026-02-16

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Medium (CVSS 6.1)

CNA CVSS vector

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

Weaknesses

• CWE-863Incorrect AuthorizationClass
• CWE-266Incorrect Privilege AssignmentBase

Data version

5.2

Document digest

9c397e0736c53705dd136a9a0bc4df8770e2c140c3341767da22f40811aa1800

• github.comhttps://github.com/cilium/cilium/security/advisories/GHSA-5r23-prx4-mqg3x_refsource_CONFIRM
• github.comhttps://github.com/cilium/cilium/pull/42892x_refsource_MISC
• github.comhttps://github.com/cilium/cilium/commit/88e28e1e62c0b1a02c3f0fc22d888ac9eefbe885x_refsource_MISC
• github.comhttps://github.com/cilium/cilium/releases/tag/v1.18.6x_refsource_MISC