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CVE-2026-54271

protobufjs-cli is the command line add-on for protobuf.js. Prior to 1.3.2 and 2.5.0, a previous fix for unsafe name handling in pbjs static / static-module code generation was incomplete. Affected versions of protobufjs-cli could still emit unsafe JavaScript references when generating static output from crafted JSON descriptor input. The common case of parsing schemas from .proto files is not affected. This is a bypass of CVE-2026-44295. An attacker who can provide or influence pre-parsed JSON d
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:f19dd48236f7db24a4af121fb948b8b4f3b955887ac87b3d2453799d0765af0f
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"protobufjs-cli","vendor":"protobufjs","versions":[{"status":"affected","version":"< 1.3.2"},{"status":"affected","version":">= 2.0.0, < 2.4.2"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:1f37b1459d3213ba913ab1f45b922e517804d2e1acdeb763b24f674ec854965a · sha256:e9f34d4d83608dd9… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":8.2,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:L","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:1f37b1459d3213ba913ab1f45b922e517804d2e1acdeb763b24f674ec854965a · sha256:e9f34d4d83608dd9… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-94","description":"CWE-94: Improper Control of Generation of Code ('Code Injection')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:1f37b1459d3213ba913ab1f45b922e517804d2e1acdeb763b24f674ec854965a · sha256:e9f34d4d83608dd9… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"name":"https://github.com/protobufjs/protobuf.js/security/advisories/GHSA-pr59-h9ph-3fr8","tags":["x_refsource_CONFIRM"],"url":"https://github.com/protobufjs/protobuf.js/security/advisories/GHSA-pr59-h9ph-3fr8"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1f37b1459d3213ba913ab1f45b922e517804d2e1acdeb763b24f674ec854965a · sha256:e9f34d4d83608dd9… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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