CVE-2026-46377

MEDIUMPre-NVD 6.27.5▲
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-05-19. a secondary CVSS source baseline 6.2; sources differ by 1.3.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
6.2
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 6.2Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Dasel is a command-line tool and library for querying, modifying, and transforming data structures. From 3.0.0 until 3.10.1, the escape sequence handler in (*Tokenizer).parseCurRune in selector/lexer/tokenize.go increments past a trailing backslash in a quoted string such as "\ or '\ and then reads p.src[pos] without a bounds check, allowing attacker-controlled selector strings to trigger a Go index-out-of-range panic. This issue is fixed in version 3.10.1.

CVSS v3
6.2
EG Score
7.5(medium)
EG Risk
50(Track)
EG Risk 50/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity75% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
2.8%
KEV
Not listed

Published

May 19, 2026

Last Modified

July 17, 2026

Advisory Details (1)

Auto-updated Jul 16, 2026
🔬 Proof of concept available. Patch available. Sources: github.
github Patch Available🟡 PoC Available

Index-out-of-range panic in dasel selector lexer on trailing backslash in quoted string · Advisory · TomWright/dasel · GitHub

https://github.com/TomWright/dasel/security/advisories/GHSA-m5j3-4634-c2vq

Vendor Advisories for CVE-2026-46377(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
gogithub.com/tomwright/dasel/v3—ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(3 across 1 ecosystem)
Go(3)
PackageVulnerable rangeFixed inDependents
github.com/tomwright/dasel———
github.com/tomwright/dasel/v2———
github.com/tomwright/dasel/v3———

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 10× in last 7d / 18× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-24 14:17 UTCEPSS rescore
  2. 2026-07-23 14:18 UTCEPSS rescore
  3. 2026-07-23 03:17 UTCEG score recompute
  4. 2026-07-22 14:08 UTCEPSS rescore
  5. 2026-07-21 15:24 UTCEPSS rescore
  6. 2026-07-20 17:08 UTCEPSS rescore
  7. 2026-07-19 14:31 UTCEPSS rescore
  8. 2026-07-19 02:29 UTCEPSS rescore
  9. 2026-07-18 10:04 UTCEPSS rescore
  10. 2026-07-17 23:29 UTCOSV refresh
  11. 2026-07-16 18:18 UTCMITRE cvelistV5CVSS v3 → 6.2 · severity → MEDIUM
  12. 2026-06-29 20:40 UTCGHSA enrichment
  13. 2026-06-28 08:13 UTCGHSA enrichment
  14. 2026-06-27 20:23 UTCGHSA enrichment
  15. 2026-06-27 07:35 UTCGHSA enrichment
  16. 2026-06-26 19:43 UTCGHSA enrichment
  17. 2026-06-26 04:20 UTCGHSA enrichment
  18. 2026-06-25 16:28 UTCGHSA enrichment
  19. 2026-06-17 23:42 UTCGHSA enrichment
  20. 2026-06-17 11:40 UTCGHSA enrichment
  21. 2026-06-16 20:42 UTCGHSA enrichment
  22. 2026-06-16 03:49 UTCGHSA enrichment
  23. 2026-06-15 15:57 UTCGHSA enrichment
  24. 2026-06-15 00:26 UTCGHSA enrichment
  25. 2026-06-14 23:18 UTCEPSS rescore
Show 32 more
  1. 2026-06-14 12:32 UTCGHSA enrichment
  2. 2026-06-14 00:40 UTCGHSA enrichment
  3. 2026-06-13 23:00 UTCEPSS rescore
  4. 2026-06-13 12:36 UTCGHSA enrichment
  5. 2026-06-12 23:34 UTCGHSA enrichment
  6. 2026-06-12 23:12 UTCEPSS rescore
  7. 2026-06-12 11:42 UTCGHSA enrichment
  8. 2026-06-11 23:52 UTCGHSA enrichment
  9. 2026-06-11 12:01 UTCGHSA enrichment
  10. 2026-06-11 00:09 UTCGHSA enrichment
  11. 2026-06-10 12:18 UTCGHSA enrichment
  12. 2026-06-10 00:27 UTCGHSA enrichment
  13. 2026-06-09 12:36 UTCGHSA enrichment
  14. 2026-06-09 00:45 UTCGHSA enrichment
  15. 2026-06-08 12:53 UTCGHSA enrichment
  16. 2026-06-08 01:02 UTCGHSA enrichment
  17. 2026-06-07 13:11 UTCGHSA enrichment
  18. 2026-06-07 01:20 UTCGHSA enrichment
  19. 2026-06-06 13:28 UTCGHSA enrichment
  20. 2026-06-06 01:36 UTCGHSA enrichment
  21. 2026-06-05 13:44 UTCGHSA enrichment
  22. 2026-06-05 01:53 UTCGHSA enrichment
  23. 2026-06-04 14:02 UTCGHSA enrichment
  24. 2026-06-04 02:11 UTCGHSA enrichment
  25. 2026-06-03 14:20 UTCGHSA enrichment
  26. 2026-06-03 02:29 UTCGHSA enrichment
  27. 2026-06-02 14:38 UTCGHSA enrichment
  28. 2026-06-02 02:47 UTCGHSA enrichment
  29. 2026-06-01 14:55 UTCGHSA enrichment
  30. 2026-06-01 03:04 UTCGHSA enrichment
  31. 2026-05-24 06:13 UTCEG score recompute
  32. 2026-05-24 06:13 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-46377?
CVE-2026-46377 is a medium vulnerability published on May 19, 2026. Dasel is a command-line tool and library for querying, modifying, and transforming data structures. From 3.0.0 until 3.10.1, the escape sequence handler in (*Tokenizer).parseCurRune in selector/lexer/tokenize.go increments past a trailing backslash in a quoted string such as "\ or '\ and then reads…
When was CVE-2026-46377 disclosed?
CVE-2026-46377 was first published in the National Vulnerability Database on May 19, 2026, with the most recent update on July 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-46377 actively exploited?
CVE-2026-46377 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-46377?
CVE-2026-46377 has a CVSS v3 base score of 6.2 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 7.5.
How do I remediate CVE-2026-46377?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-46377, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-46377

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