CVE-2026-42290

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.8 under NVD CVSS v3. EPSS exploit probability: 0.1%, top 97% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
7.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.8Exploit: NoneExposed: 0

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

protobufjs-cli is the command line add-on for protobuf.js. Prior to 1.2.1 and 2.0.2, pbts invoked JSDoc by building a shell command string from input file paths and executing it through child_process.exec. File paths containing shell metacharacters could therefore be interpreted by the shell instead of being passed to JSDoc as plain arguments. This vulnerability is fixed in 1.2.1 and 2.0.2.

CVSS v3
7.8
EG Score
7.8(medium)
EPSS
3.1%
KEV
Not listed

Published

May 13, 2026

Last Modified

May 19, 2026

Advisory Details (1)

Auto-updated May 13, 2026
Patch available. Sources: github.
github Patch Available

pbts command injection via crafted input paths · Advisory · protobufjs/protobuf.js · GitHub

https://github.com/protobufjs/protobuf.js/security/advisories/GHSA-f84p-cvgm-xgjj

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFixed inDependents
protobufjs-cli—2.0.2—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 40× 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.

Showing the most recent 100 of 114 total refreshes for this CVE.

  1. 2026-07-15 16:57 UTCEPSS rescore
  2. 2026-07-13 22:30 UTCEPSS rescore
  3. 2026-07-13 06:13 UTCEPSS rescore
  4. 2026-07-12 05:46 UTCEPSS rescore
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  25. 2026-06-25 13:49 UTCEPSS rescore
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  1. 2026-06-25 13:49 UTCEPSS rescore
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  13. 2026-06-17 14:34 UTCEG score recompute
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  17. 2026-06-15 17:49 UTCEPSS rescore
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  22. 2026-06-13 04:52 UTCEG score recompute
  23. 2026-06-12 23:12 UTCEPSS rescore
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  25. 2026-06-12 16:50 UTCEG score recompute
  26. 2026-06-12 05:51 UTCEG score recompute
  27. 2026-06-11 18:53 UTCEG score recompute
  28. 2026-06-11 14:00 UTCEPSS rescore
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  34. 2026-06-10 09:46 UTCEG score recompute
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  38. 2026-06-08 14:17 UTCEPSS rescore
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  40. 2026-06-08 13:50 UTCEG score recompute
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  43. 2026-06-07 15:25 UTCEPSS rescore
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  45. 2026-06-07 04:55 UTCEG score recompute
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  50. 2026-06-05 22:47 UTCEPSS rescore
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  62. 2026-06-02 20:13 UTCEPSS rescore
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  66. 2026-06-01 13:52 UTCEPSS rescore
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  69. 2026-05-31 22:30 UTCEPSS rescore
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  73. 2026-05-29 13:44 UTCEPSS rescore
  74. 2026-05-29 13:44 UTCEPSS rescore
  75. 2026-05-28 13:44 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-42290?
CVE-2026-42290 is a high vulnerability published on May 13, 2026. protobufjs-cli is the command line add-on for protobuf.js. Prior to 1.2.1 and 2.0.2, pbts invoked JSDoc by building a shell command string from input file paths and executing it through child_process.exec. File paths containing shell metacharacters could therefore be interpreted by the shell…
When was CVE-2026-42290 disclosed?
CVE-2026-42290 was first published in the National Vulnerability Database on May 13, 2026, with the most recent update on May 19, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-42290 actively exploited?
CVE-2026-42290 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 3.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-42290?
CVE-2026-42290 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-42290?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-42290, 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

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