CVE catalog
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
- Severity
- High · CVSS 7.4
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.15% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | wget2 | sid | 2.2.0+ds-3 | vulnerable |
| Debian | wget2 | forky | 2.2.0+ds-3 | vulnerable |
| Debian | wget2 | trixie | 2.2.0+ds-1+deb13u1 | vulnerable |
| Debian | wget2 | bookworm | 1.99.1-2.2 | vulnerable |
| Cpe | wget2 | Not reported | Not reported | vulnerable |
| Cpe | wget2 | Not reported | Not reported | unknown |
| Cpe | wget2 | Not reported | Not reported | unknown |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | wget2 | source | sid | (unfixed) | not yet assigned | Not reported | [1135342] |
| Debian | wget2 | source | forky | (unfixed) | not yet assigned | Not reported | [1135342] |
| Debian | wget2 | source | trixie | (unfixed) | not yet assigned | Not reported | [1135342] |
| Debian | wget2 | source | bookworm | (unfixed) | not yet assigned | Not reported | [1135342] |
Notes
[trixie] wget2: Minor issue [bookworm] wget2: Minor issue
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libwget0]Affected
Source package: [wget2]
Details (2)
1.99.1-2.2· amd64 · bookwormAffected
nvd · wget2 · debian · bookworm; nvd · wget2 · debian · 12
1.99.1-2.2· arm64 · bookwormAffected
nvd · wget2 · debian · bookworm; nvd · wget2 · debian · 12
- [wget2]Affected
Details (2)
1.99.1-2.2· amd64 · bookwormAffected
nvd · wget2 · debian · bookworm; nvd · wget2 · debian · 12
1.99.1-2.2· arm64 · bookwormAffected
nvd · wget2 · debian · bookworm; nvd · wget2 · debian · 12
- [wget2-dev]Affected
Source package: [wget2]
Details (2)
1.99.1-2.2· amd64 · bookwormAffected
nvd · wget2 · debian · bookworm; nvd · wget2 · debian · 12
1.99.1-2.2· arm64 · bookwormAffected
nvd · wget2 · debian · bookworm; nvd · wget2 · debian · 12
[Debian 13 (Trixie)]
- [libwget3]Affected
Source package: [wget2]
Details (2)
2.2.0+ds-1+deb13u1· amd64 · trixieAffected
nvd · wget2 · debian · 13
2.2.0+ds-1+deb13u1· arm64 · trixieAffected
nvd · wget2 · debian · 13
- [wget2]Affected
Details (2)
2.2.0+ds-1+deb13u1· amd64 · trixieAffected
nvd · wget2 · debian · 13
2.2.0+ds-1+deb13u1· arm64 · trixieAffected
nvd · wget2 · debian · 13
- [wget2-dev]Affected
Source package: [wget2]
Details (2)
2.2.0+ds-1+deb13u1· amd64 · trixieAffected
nvd · wget2 · debian · 13
2.2.0+ds-1+deb13u1· arm64 · trixieAffected
nvd · wget2 · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-1858]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-1858]
- [https://security-tracker.debian.org/tracker/CVE-2026-1858]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-1858.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1318.json]
- [https://www.tenable.com/security/research/tra-2026-37]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]