CVE-2026-54779

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

0.43% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 36.0% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Deferred. NVD last modified this record on 2026-07-09.

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

2026-07-08 22:07Z1 MO AGO

Last updated

2026-07-09 14:17Z1 MO AGO

Reserved

2026-06-15

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Medium (CVSS 5.9)

CNA CVSS vector

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

Weaknesses

• CWE-294Authentication Bypass by Capture-replayBase
• CWE-613Insufficient Session ExpirationBase

Data version

5.2

Document digest

3a7f1f3d8d48c8bdfd3f0bb12fdbe1222404e2f5b189f80c613c3167d165738b

• github.comhttps://github.com/CoreWCF/CoreWCF/security/advisories/GHSA-9jr3-rj99-8jq3x_refsource_CONFIRM
• github.comhttps://github.com/CoreWCF/CoreWCF/commit/3800c4e2bb4c6fde00ddacefdc2221ef33d55621x_refsource_MISC
• github.comhttps://github.com/CoreWCF/CoreWCF/commit/7b0b5231cf21b4b5c1fc3caac9981f8bee43823fx_refsource_MISC
• github.comhttps://github.com/CoreWCF/CoreWCF/commit/84f8cff5a786b5aaa73448cb379d366a7df98238x_refsource_MISC
• github.comhttps://github.com/CoreWCF/CoreWCF/releases/tag/v1.8.1x_refsource_MISC
• github.comhttps://github.com/CoreWCF/CoreWCF/releases/tag/v1.9.1x_refsource_MISC