CVE Explorer
CVE-2026-54270
protobufjs compiles protobuf definitions into JavaScript (JS) functions. From 8.2.0 to 8.4.2, protobufjs preserved unknown wire elements in message.$unknowns and did not provide a decode-time option to discard unknown fields before retaining them. A crafted protobuf payload containing many unknown fields could therefore cause a decoded message to retain substantially more memory than the input size would suggest, even when unknown-field round-tripping is not needed. protobufjs 8.5.0 added the re
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"protobuf.js","vendor":"protobufjs","versions":[{"status":"affected","version":">=8.2.0, < 8.5.0"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:ac95f35991082325875773591cd318341465a249e2b661006821a82b135fd5ad · sha256:ee2f8623564350d7… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:ac95f35991082325875773591cd318341465a249e2b661006821a82b135fd5ad · sha256:ee2f8623564350d7… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-770","description":"CWE-770: Allocation of Resources Without Limits or Throttling","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:ac95f35991082325875773591cd318341465a249e2b661006821a82b135fd5ad · sha256:ee2f8623564350d7… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"name":"https://github.com/protobufjs/protobuf.js/security/advisories/GHSA-94rc-8x27-4472","tags":["x_refsource_CONFIRM"],"url":"https://github.com/protobufjs/protobuf.js/security/advisories/GHSA-94rc-8x27-4472"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:ac95f35991082325875773591cd318341465a249e2b661006821a82b135fd5ad · sha256:ee2f8623564350d7… · /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.