CVE-2026-9538
Description
AI Translation Available
Archive::Tar versions before 3.10 for Perl allow memory exhaustion via attacker controlled entry size field in tar header.
_read_tar() reads each entry's payload with $handle->read($$data, $block), where $block is derived from the entry's 12-byte size field in the tar header with no upper bound on that value.
A crafted header declaring a multi-gigabyte size causes Perl to allocate a scalar of that size.
EPSS (Exploit Prediction Scoring System)
Trend Analysis
EPSS (Exploit Prediction Scoring System)
Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.
EPSS Score
0,0002
Percentile
0,0th
Updated
Single Data Point
Only one EPSS measurement is available for this CVE. Trend analysis requires multiple data points over time.
789
Memory Allocation with Excessive Size Value
DraftCommon Consequences
Security Scopes Affected:
Availability
Potential Impacts:
Dos: Resource Consumption (Memory)
Applicable Platforms
Languages:
C, C++, Not Language-Specific
https://github.com/jib/archive-tar-new/commit/f9af01426038e29d9578825a0cd362694…
https://metacpan.org/release/BINGOS/Archive-Tar-3.10/changes
http://www.openwall.com/lists/oss-security/2026/05/26/4