CVE Explorer
CVE-2026-5758
JavaScript is vulnerable to prototype pollution in Mafintosh's protocol-buffers-schema Version 3.6.0, where an attacker may alter the application logic, bypass security checks, cause a DoS or achieve remote code execution.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"Protocol-buffers-schema parser","vendor":"Mafintosh","versions":[{"lessThan":"3.6.1","status":"affected","version":"3.6.0","versionType":"custom"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:e5d3bda299cdca0d6d447bc883251592cc4154a6cfffc041b8cfcd4da71b7256 · sha256:ad97b3da25652b35… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:e5d3bda299cdca0d6d447bc883251592cc4154a6cfffc041b8cfcd4da71b7256 · sha256:ad97b3da25652b35… · /containers/adp/0/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"description":"CWE-200 Exposure of Sensitive Information to an Unauthorized Actor","lang":"en"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:e5d3bda299cdca0d6d447bc883251592cc4154a6cfffc041b8cfcd4da71b7256 · sha256:ad97b3da25652b35… · /containers/cna/problemTypes/0/descriptions/0
Source references
2 source assertions{"url":"https://github.com/mafintosh/protocol-buffers-schema/pull/70"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:e5d3bda299cdca0d6d447bc883251592cc4154a6cfffc041b8cfcd4da71b7256 · sha256:ad97b3da25652b35… · /containers/cna/references/0
{"url":"https://morielharush.github.io/2026/04/12/cve-2026-5758-protocol-buffers-schema-prototype-pollution/"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:e5d3bda299cdca0d6d447bc883251592cc4154a6cfffc041b8cfcd4da71b7256 · sha256:ad97b3da25652b35… · /containers/cna/references/1
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.