protobufjs-cli is the command line add-on for protobuf.js. Prior to 1.2.1 and 2.0.2, pbjs static code generation could emit unsafe JavaScript identifiers derived from schema-controlled names. When generating static JavaScript from a crafted schema or JSON descriptor, certain namespace, enum, service, or derived full names could be written into the generated output without sufficient sanitization. This vulnerability is fixed in 1.2.1 and 2.0.2.
CVE-2026-44295
This high-severity CVE scores 8.7 under NVD CVSS v3. EPSS exploit probability: 0.4%, top 68% 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).
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 8.7
- EG Score
- 8.7(medium)
- EG Risk
- 39(Track)EG Risk 39/100SSVC: 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 computedSeverity87% × 45%Exploitation0% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS
- 32.1%
- KEV
- Not listed
Published
May 13, 2026
Last Modified
May 19, 2026
Advisory Details (1)
Auto-updated May 13, 2026Code injection in pbjs static output from crafted schema names · Advisory · protobufjs/protobuf.js · GitHub
https://github.com/protobufjs/protobuf.js/security/advisories/GHSA-6r35-46g8-jcw9Affected Packages
(1 across 1 ecosystem)
npm(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| protobufjs-cli | — | 2.0.2 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 9× in last 7d / 32× 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.
- 2026-07-23 03:15 UTCEG score recompute
- 2026-07-22 14:08 UTCEPSS rescore
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- 2026-07-18 02:59 UTCOSV refresh
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- 2026-06-28 14:07 UTCEPSS rescore
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- 2026-05-29 13:44 UTCEPSS rescore
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- 2026-05-26 13:44 UTCEPSS rescore
- 2026-05-26 07:18 UTCEPSS rescore
- 2026-05-21 22:43 UTCEPSS rescore
- 2026-05-20 22:38 UTCEPSS rescore
- 2026-05-20 12:30 UTCEG score recompute
- 2026-05-20 11:22 UTCEPSS rescore
Related CVEs(same CWE)
Same CWE
10 shownCWE-94
Frequently asked(5)
What is CVE-2026-44295?
When was CVE-2026-44295 disclosed?
Is CVE-2026-44295 actively exploited?
What is the CVSS score of CVE-2026-44295?
How do I remediate CVE-2026-44295?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-44295
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