CVE-2026-42505 Affecting gptscript package, versions <0.9.9-r438


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.38% (30th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-GPTSCRIPT-17918665
  • published10 Jul 2026
  • disclosed8 Jul 2026

Introduced: 8 Jul 2026

CVE-2026-42505  (opens in a new tab)

How to fix?

Upgrade Chainguard gptscript to version 0.9.9-r438 or higher.

NVD Description

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

Handshakes which used Encrypted Client Hello could be de-anonymized by a passive network observer due to a disclosure of pre-shared key identities in the unencrypted client hello.

CVSS Base Scores

version 3.1