CVE-2026-54003

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 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

0.74% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 54.2% of scored records. A rank, not a probability.

NVD base score

9.1 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Deferred. NVD last modified this record on 2026-10-25.

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

2026-07-09 18:36Z3 MO AGO

Last updated

2026-07-09 19:23Z3 MO AGO

Reserved

2026-06-11

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Critical (CVSS 9.1)

CNA CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Weaknesses

• CWE-454External Initialization of Trusted Variables or Data StoresBase

Data version

5.2

Document digest

8775d7ed3f9ce2633d4a8b2d9e02bffbaf23a36d00ec24ac23839b10458dbd1a

• github.comhttps://github.com/getkirby/kirby/security/advisories/GHSA-whxw-24jc-cwmvx_refsource_CONFIRM
• github.comhttps://github.com/getkirby/kirby/pull/8166x_refsource_MISC
• github.comhttps://github.com/getkirby/kirby/commit/1c7fee90e49153cf9ca4a6ec17481d25fbedc48dx_refsource_MISC
• github.comhttps://github.com/getkirby/kirby/commit/3423f66c01dbc0455862e23ee699d2aa469f3234x_refsource_MISC
• github.comhttps://github.com/getkirby/kirby/commit/66a3a14bf0892d320723ba766cd5f1d33a51d15bx_refsource_MISC
• github.comhttps://github.com/getkirby/kirby/commit/ab992dc149610b90e337c2955ab6ccb7f72ffb3ax_refsource_MISC
• github.comhttps://github.com/getkirby/kirby/releases/tag/4.9.4x_refsource_MISC
• github.comhttps://github.com/getkirby/kirby/releases/tag/5.4.4x_refsource_MISC