Vulnerability in GDB's STABS Debug Format Parser
CVE-2026-13732

7.8HIGH

Key Information:

Vendor

Red Hat
Status
Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Vendor
CVE Published:
31 August 2026

What is CVE-2026-13732?

A vulnerability exists in GDB's STABS debug format parser that allows an attacker to exploit a linked list removal bug within the read_member_functions() function. This bug leads to an out-of-bounds write during the handling of C++ destructor entries when processing specific ELF binaries. By crafting malicious .stab and .stabstr sections, an attacker can trigger this flaw while performing symbol-inspection operations in GDB, such as setting breakpoints. This may result in the execution of arbitrary commands within the GDB process, posing significant security implications for systems utilizing vulnerable versions of GDB.

References

https://access.redhat.com/security/cve/CVE-2026-13732
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2494416
issue-trackingx_refsource_REDHAT

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Red Hat would like to thank JD Marsters (Bhut Red) for reporting this issue.
.