CVE-2026-115893

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

0.99% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 62.3% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Deferred. NVD last modified this record on 2026-10-23.

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

2026-10-23 21:29Z5 DAYS AGO

Last updated

2026-10-23 21:29Z5 DAYS AGO

Reserved

2026-10-23

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Critical (CVSS 9.9)

CNA CVSS vector

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

Weaknesses

• CWE-691Insufficient Control Flow ManagementPillar

Data version

5.2

Document digest

f02e155455474c745415217ce0fc76af8f754c3ae5599bc03e919585b0d7493a

• github.comhttps://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-mghf-wjfp-p5xmx_refsource_CONFIRM
• github.comhttps://github.com/bytecodealliance/wasmtime/pull/14818x_refsource_MISC
• github.comhttps://github.com/bytecodealliance/wasmtime/pull/14819x_refsource_MISC
• github.comhttps://github.com/bytecodealliance/wasmtime/pull/14820x_refsource_MISC
• github.comhttps://github.com/bytecodealliance/wasmtime/pull/14826x_refsource_MISC
• github.comhttps://github.com/bytecodealliance/wasmtime/commit/222ff3a65dab9aa7011f8c246937751a0bac5abdx_refsource_MISC
• github.comhttps://github.com/bytecodealliance/wasmtime/commit/994549891c8a706cb4f2809f9d17b9f67b31e618x_refsource_MISC
• github.comhttps://github.com/bytecodealliance/wasmtime/commit/e61df1b454be9313d61a5f8de07722a421139bbex_refsource_MISC
• github.comhttps://github.com/bytecodealliance/wasmtime/commit/f517bd6e890c7c1291ab9fe05d8cc0c9f11e56aax_refsource_MISC
• github.comhttps://github.com/bytecodealliance/wasmtime/releases/tag/v36.0.19x_refsource_MISC
• github.comhttps://github.com/bytecodealliance/wasmtime/releases/tag/v48.0.7x_refsource_MISC
• github.comhttps://github.com/bytecodealliance/wasmtime/releases/tag/v49.0.4x_refsource_MISC