What is CVE-2026-9538?

CVE-2026-9538 is a high-severity vulnerability in Archive\ \, classified under CWE-789. CVSS score: 7.5/10. Published 2026-05-26.

How severe is CVE-2026-9538?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Archive\ \

CVE-2026-9538

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…

EPSS: 0.000 (11.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Archive\ \ — versions tar_project
Bingos Archive::tar — versions 0

Weakness classification (CWE)

CWE-789

References

9b29abf9-4ab0-4765-b253-1875cd9b441e (Patch, patch)
9b29abf9-4ab0-4765-b253-1875cd9b441e (release-notes, Release Notes)
af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2026-9538?: CVE-2026-9538 is a high-severity vulnerability in Archive\ \, classified under CWE-789. CVSS score: 7.5/10. Published 2026-05-26.
How severe is CVE-2026-9538?: High severity. CVSS v3 base score is 7.5 out of 10.