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Advisory record · GHSA-65gg-g7rw-6cpc

Dasel: Selector lexer panics on trailing whitespace in `parseCurRune`

CVSS 6.2 MediumEPSS 0.0019 · 8th percentile

Published by the GitHub Advisory Database at 22 Sept 2026, 19:52 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
github.com/tomwright/dasel/v3Go>=3.0.0, <3.11.23.11.2
Identifiers
GHSA-65gg-g7rw-6cpc · CVE-2026-62866 · GO-2026-6548
Weakness (CWE)
CWE-129
Tags
Published
22 Sept 2026
Updated
1 Oct 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

GHSA-65gg-g7rw-6cpc: Dasel's selector lexer in github.com/tomwright/dasel/v3, versions 3.0.0 up to 3.11.2, panics when a selector ends in whitespace, such as "a ". Any user or caller who can pass a selector to the query function can crash the process, with no authentication needed. Upgrade to version 3.11.2 or later, which contains the fix. The source gives few other details.

Written 1 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
6.2 Medium 3.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0019, the 8th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:12 UTC First seen by agentprime
  2. 31 Oct 2026, 14:12 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.