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DEBIAN-CVE-2026-55960

Type: advisorySource: OSV1 source record

Un-negotiated Raw Public Key (RFC 7250) accepted in place of an X.509 certificate, bypassing chain validation. A raw public key has no chain, so ParseCertRelative() accepts it without performing any trust verification; it must therefore only be accepted when RPK was actually negotiated for that peer. The check now defaults the expected type to X.509 (per RFC 7250/8446) when no type was negotiated, comparing against the received server certificate type on the client and the selected client certificate type on the server, and rejects any mismatch, including an un-negotiated raw public key, with UNSUPPORTED_CERTIFICATE. Only affects builds with Raw Public Key support (HAVE_RPK) enabled - disabled by default in a standalone build, but included in --enable-all.

Announced Group revision 1
Original source ↗

DEBIAN-CVE-2026-55960

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:DEBIAN-CVE-2026-55960

wolfssl

Source reference: /affected/0/package/name

Affected versions
5.5.4-2

Source reference: /affected/0/versions

5.5.4-2+deb12u1

Source reference: /affected/0/versions

5.5.4-2+deb12u2

Source reference: /affected/0/versions

5.5.4-2+deb12u3

Source reference: /affected/0/versions

5.5.4-2.1

Source reference: /affected/0/versions

5.6.4-1

Source reference: /affected/0/versions

5.6.4-2

Source reference: /affected/0/versions

5.6.6-1

Source reference: /affected/0/versions

5.6.6-1.1

Source reference: /affected/0/versions

5.6.6-1.2

Source reference: /affected/0/versions

5.6.6-1.3

Source reference: /affected/0/versions

5.6.6-1.3~exp1

Source reference: /affected/0/versions

5.7.0-0.1

Source reference: /affected/0/versions

5.7.0-0.2

Source reference: /affected/0/versions

5.7.0-0.3

Source reference: /affected/0/versions

5.7.2-0.1

Source reference: /affected/0/versions

5.7.2-0.2

Source reference: /affected/0/versions

5.7.2-0.3

Source reference: /affected/0/versions

5.7.2-0.4

Source reference: /affected/0/versions

5.8.2-1

Source reference: /affected/0/versions

5.8.2-1.1

Source reference: /affected/0/versions

5.8.2-1.2

Source reference: /affected/0/versions

5.8.4-1

Source reference: /affected/0/versions

5.9.0-0.1

Source reference: /affected/0/versions

5.9.0-0.2

Source reference: /affected/0/versions

5.9.1-0.1

Source reference: /affected/0/versions

5.9.2-1

Source reference: /affected/0/versions

Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

wolfssl

Source reference: /affected/1/package/name

Affected versions
5.7.2-0.1

Source reference: /affected/1/versions

5.7.2-0.1+deb13u1

Source reference: /affected/1/versions

Fixed versions
5.7.2-0.1+deb13u2

Source reference: /affected/1/ranges

Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "wolfssl",
      "purl": "pkg:deb/debian/wolfssl?arch=source&distro=bookworm",
      "ecosystem": "Debian:12"
    },
    "versions": [
      "5.5.4-2",
      "5.5.4-2+deb12u1",
      "5.5.4-2+deb12u2",
      "5.5.4-2+deb12u3",
      "5.5.4-2.1",
      "5.6.4-1",
      "5.6.4-2",
      "5.6.6-1",
      "5.6.6-1.1",
      "5.6.6-1.2",
      "5.6.6-1.3",
      "5.6.6-1.3~exp1",
      "5.7.0-0.1",
      "5.7.0-0.2",
      "5.7.0-0.3",
      "5.7.2-0.1",
      "5.7.2-0.2",
      "5.7.2-0.3",
      "5.7.2-0.4",
      "5.8.2-1",
      "5.8.2-1.1",
      "5.8.2-1.2",
      "5.8.4-1",
      "5.9.0-0.1",
      "5.9.0-0.2",
      "5.9.1-0.1",
      "5.9.2-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-55960.json"
    },
    "ecosystem_specific": {
      "urgency": "end-of-life"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "5.7.2-0.1+deb13u2"
          }
        ]
      }
    ],
    "package": {
      "name": "wolfssl",
      "purl": "pkg:deb/debian/wolfssl?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "5.7.2-0.1",
      "5.7.2-0.1+deb13u1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-55960.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#57356 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement