CVE-2026-13502
LOW
INFO
Priority: 0.00
BB Relevance:
27/100
Published: 2026-06-28
Modified: 2026-10-25
First seen: 2026-10-29
Status: active
Attack Surface
Low Complexity
No Interaction
CVSS Vector Breakdown
AV:
Local
AC:
High
PR:
Low
UI:
None
S:
X
AT:
None
VC:
Low
VI:
Low
VA:
Low
Description
A flaw has been found in antlr ANTLR4 up to 4.13.2. This affects the function ObjectInputStream.readObject of the file antlr4-maven-plugin/src/main/java/org/antlr/mojo/antlr4/GrammarDependencies.java of the component Maven Plugin. This manipulation causes time-of-check time-of-use. The attack is restricted to local execution. A high degree of complexity is needed for the attack. It is indicated that the exploitability is difficult. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.