CVE Explorer
CVE-2026-56850
A flaw in Node.js HTTPS Agent connection reuse can cause PFX object-array key collisions, allowing mutual TLS (mTLS) client identities to be reused across requests configured with different client certificates.
This vulnerability affects Node.js **26.x**, **24.x**, and **22.x**.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unaffected","product":"node","vendor":"nodejs","versions":[{"lessThanOrEqual":"26.5.0","status":"affected","version":"26.5.0","versionType":"semver"},{"lessThanOrEqual":"24.18.0","status":"affected","version":"24.18.0","versionType":"semver"},{"lessThanOrEqual":"22.23.1","status":"affected","version":"22.23.1","versionType":"semver"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:b035b68bf186d948c2fb6ea3ac813d64b470b3707d88f02ea06aeb9bf98f9d00 · sha256:a82a323671b53acf… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"baseScore":4.1,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:N","version":"3.0"},"metric_type":"cvssV3_0"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:b035b68bf186d948c2fb6ea3ac813d64b470b3707d88f02ea06aeb9bf98f9d00 · sha256:a82a323671b53acf… · /containers/cna/metrics/0/cvssV3_0
CWE assertions
1 source assertion{"cweId":"CWE-287","description":"CWE-287 Improper Authentication - Generic","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:b035b68bf186d948c2fb6ea3ac813d64b470b3707d88f02ea06aeb9bf98f9d00 · sha256:a82a323671b53acf… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"url":"https://nodejs.org/en/blog/vulnerability/july-2026-security-releases"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:b035b68bf186d948c2fb6ea3ac813d64b470b3707d88f02ea06aeb9bf98f9d00 · sha256:a82a323671b53acf… · /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.