CVE Explorer
CVE-2026-1858
wget2 accepts a server certificate with incorrect Key Usage (KU) or Extended Key Usage (EKU). If the attackers compromise a certificate (with the associated private key) issued for a different purpose, they may be able to reuse it for TLS server authentication.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unaffected","product":"wget2","vendor":"gnu","versions":[{"lessThanOrEqual":"2.2.1","status":"affected","version":"0","versionType":"semver"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:d9d7425d85851af5fbb7289662f3108545ed989a53092b74e2273d50db77162c · sha256:8eda948cf7b43c09… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.8,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:d9d7425d85851af5fbb7289662f3108545ed989a53092b74e2273d50db77162c · sha256:8eda948cf7b43c09… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-20","description":"CWE-20 Improper input validation","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:d9d7425d85851af5fbb7289662f3108545ed989a53092b74e2273d50db77162c · sha256:8eda948cf7b43c09… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"url":"https://www.tenable.com/security/research/tra-2026-37"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:d9d7425d85851af5fbb7289662f3108545ed989a53092b74e2273d50db77162c · sha256:8eda948cf7b43c09… · /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.