Improper Input Validation Affecting zed package, versions <1.12.0-r1


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.45% (36th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-ZED-18280571
  • published24 Jul 2026
  • disclosed2 Sept 2026

Introduced: 24 Jul 2026

CVE-2026-53600  (opens in a new tab)
CWE-20  (opens in a new tab)
CWE-843  (opens in a new tab)

How to fix?

Upgrade Chainguard zed to version 1.12.0-r1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream zed package and not the zed package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

async-tar is a tar archive reading/writing library for async Rust. Prior to version 0.6.1, async-tar mis-applies a buffered PAX size extension to an intermediary extension header (a GNU longname L, a GNU longlink K, or a PAX x/g header) instead of to the next file entry. POSIX requires a PAX extended-header record set to describe the next file entry, never an intervening extension header. Because poll_next_raw (src/archive.rs) threads the buffered PAX records into the size computation of whatever raw header it reads next — and that header can be an intermediary L — the stream cursor is advanced by an attacker-chosen amount when the L body is consumed. The parser then desyncs relative to a POSIX-correct tar parser (e.g. GNU tar), reading subsequent bytes at the wrong block boundary. This issue has been patched in version 0.6.1.