HIGHVulnerability
Verified
Global

NVD HIGH: CVE-2026-9538 — Archive::Tar versions before 3.10 for Perl allow memory exhaustion via attacker ...

·Source: NIST NVD

Updated:

Executive Summary

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 th

Analysis

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. CVSS Score: 7.5. Published: 2026-05-26T02:16:41.150.

Indicators of Compromise (1)

CVE (1)
CVE-2026-9538
NVDMITRE CVE
Source Attribution

Originally published by NIST NVD on May 26, 2026. Verified by: NIST.

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