CVE-2026-110259

medium

OW2 ASM 3.0 before 9.11 contains an uncontrolled recursion vulnerability in ClassWriter.replaceAsmInstructions() that allows attackers to cause denial of servi…

OW2 ASM 3.0 before 9.11 contains an uncontrolled recursion vulnerability in ClassWriter.replaceAsmInstructions() that allows attackers to cause denial of service through crafted class files. Attackers can supply a class with a large method containing many long forward jumps, triggering unbounded toByteArray() recursion and a StackOverflowError during transformation.

CVSS

5.5

5.5 (CVSS v3.1)

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

Severity source: NVD CVSS v3.1 (disclosure@vulncheck.com)

Timeline (UTC)

Published: 2026-10-14 15:17

Modified: 2026-10-26 17:17

NVD status: Awaiting Analysis

Last synced 1 day ago

Verified against the source API 2026-10-27 07:02 UTC

Exploitation

Not listed in CISA KEV (as of last catalog sync)

Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).

Affected products

Not reported by the source (unknown — not "none").

Weakness classification (CWE)

CWE-674

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

Mitigation & advisories

No vendor advisory or patch reference tagged by NVD. Check the references below.

References

https://asm.ow2.io/versions.html disclosure@vulncheck.com
https://gitlab.ow2.org/asm/asm/-/blob/ASM_9_10_1/asm/src/main/java/org/objectweb/asm/Class... disclosure@vulncheck.com
https://gitlab.ow2.org/asm/asm/-/commit/e9aca627c17e1619bcb8059afb43382dac6b275f disclosure@vulncheck.com
https://gitlab.ow2.org/asm/asm/-/merge_requests/459 disclosure@vulncheck.com
https://www.vulncheck.com/advisories/ow2-asm-3.0-before-9.11-uncontrolled-recursion-via-cl... disclosure@vulncheck.com

Data sources

NVD CVE API 2.0 — fetched 2026-10-27 07:02 UTC · record ↗

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