Is CVE-2026-33055 actively exploited?

No active exploitation of CVE-2026-33055 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-33055 be exploited remotely?

Yes. CVE-2026-33055 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-33055?

CVE-2026-33055 has a CVSS score of 8.1 (HIGH).

HOME VULNERABILITIESCVE-2026-33055

HIGH

CVE-2026-33055

CWE-843Published: March 20, 2026· Updated: Mar 23, 2026

8.1

CVSS v3.1

EPSS:0.01%probability of exploitation in 30 daysPercentile:2.0th

Official Description

tar-rs is a tar archive reading/writing library for Rust. Versions 0.4.44 and below have conditional logic that skips the PAX size header in cases where the base header size is nonzero. As part of CVE-2025-62518, the astral-tokio-tar project was changed to correctly honor PAX size headers in the case where it was different from the base header. This is almost the inverse of the astral-tokio-tar issue. Any discrepancy in how tar parsers honor file size can be used to create archives that appear differently when unpacked by different archivers. In this case, the tar-rs (Rust tar) crate is an outlier in checking for the header size - other tar parsers (including e.g. Go archive/tar) unconditionally use the PAX size override. This can affect anything that uses the tar crate to parse archives and expects to have a consistent view with other parsers. This issue has been fixed in version 0.4.45.

NVD Source

Technical Analysis

CVE-2026-33055 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), with a CVSS base score of 8.1.