CVE-2026-17591
LOW
INFO
Priority: 0.01
BB Relevance:
22/100
Published: 2026-10-16
Modified: 2026-11-06
First seen: 2026-11-06
Status: active
Attack Surface
No Auth
CVSS Vector Breakdown
AV:
Local
AC:
High
PR:
None
UI:
Required
S:
Unchanged
C:
Low
I:
None
A:
Low
Description
A flaw was found in libarchive. An attacker can cause a Denial of Service (DoS) or potential information disclosure due to a use-after-free vulnerability, which occurs when a program reads memory that has already been released. This issue arises when the archive_entry_copy_mac_metadata() function deallocates an internal buffer before completing a data copy. An attacker who can supply input to an application utilizing this function can trigger the flaw to crash the application or read uninitialized memory data.
Weakness Classification (1)
References & Advisories (4)
vendor-advisory
x_refsource_REDHAT
vdb-entry
x_refsource_REDHAT
issue-tracking
x_refsource_REDHAT