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Advisory record · GHSA-m5j3-4634-c2vq

Dasel: Index-out-of-range panic in dasel selector lexer on trailing backslash in quoted string

CVSS 6.2 MediumEPSS 0.0019 · 8th percentile

Published by the GitHub Advisory Database at 19 May 2026, 20:08 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, <=3.10.0No fixed version yet
Identifiers
GHSA-m5j3-4634-c2vq · CVE-2026-46377 · GO-2026-5491
Weakness (CWE)
CWE-129
Tags
Published
19 May 2026
Updated
10 Sept 2026

Machine-written summary

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

Dasel (github.com/tomwright/dasel/v3) versions 3.0.0 through 3.10.0 are affected. A selector string ending in a quoted string with a trailing backslash causes the selector lexer to panic with an index-out-of-range error, crashing the process. An attacker who can influence the selector string passed to dasel can trigger the crash, unless the calling application recovers from panics. No fixed version is listed; the source gives no workaround beyond not passing untrusted selector strings to dasel.

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 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:13 UTC First seen by agentprime
  2. 31 Oct 2026, 14:13 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.