CVE catalog

CVE-2026-89136

When using RPK (Raw Public Key), the client side of a TLS 1.2, 1.3 and DTLS 1.2 connection could accept an unsolicited server_cert_type=RawPublicKey which allowed a malicious or misbehaving server to

[CVE catalog]

Severity: High · CVSS 8.3CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published: Sep 27, 2026, 10:16:59 AM UTC
Updated: Sep 27, 2026, 10:16:59 AM UTC
Source: [NVD] · [CVE record]
EPSS: 0.38% · Oct 25, 2026

When using RPK (Raw Public Key), the client side of a TLS 1.2, 1.3 and DTLS 1.2 connection could accept an unsolicited server_cert_type=RawPublicKey which allowed a malicious or misbehaving server to bypass authentication. RPK is off by default and only enabled in --enable-rpk OR --enable-all OR --enable-distro AKA HAVE_RPK builds.

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	wolfssl	sid	`5.9.2-1.2`	fixed
Debian	wolfssl	trixie	`5.7.2-0.1+deb13u2`	vulnerable
Debian	wolfssl	bookworm	`5.5.4-2+deb12u2`	not affected
Debian	wolfssl	bookworm-security	`5.5.4-2+deb12u3`	not affected

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	wolfssl	source	sid	`5.9.2-1.1`	not yet assigned	Not reported	[1150338]
Debian	wolfssl	source	trixie	`(unfixed)`	not yet assigned	Not reported	[1150338]
Debian	wolfssl	source	bookworm	`Not affected`	unimportant	Not reported	[1150338]

[Debian bug #1150338]

Notes

[trixie] wolfssl: Minor issue

OpenFactory catalog packages

[Debian 13 (Trixie)]

[libwolfssl42t64]Affected
Source package: [wolfssl]
Details (2)
- 5.7.2-0.1+deb13u1 · amd64 · trixie
  Affected
  nvd · wolfssl · debian · 13
- 5.7.2-0.1+deb13u1 · arm64 · trixie
  Affected
  nvd · wolfssl · debian · 13
[libwolfssl-dev]Affected
Source package: [wolfssl]
Details (2)
- 5.7.2-0.1+deb13u1 · amd64 · trixie
  Affected
  nvd · wolfssl · debian · 13
- 5.7.2-0.1+deb13u1 · arm64 · trixie
  Affected
  nvd · wolfssl · debian · 13

[Debian 12 (Bookworm)]

[libwolfssl35]Not affected
Source package: [wolfssl]
Details (4)
- 5.5.4-2+deb12u2 · amd64 · bookworm
  Not affected
  nvd · wolfssl · debian · bookworm
- 5.5.4-2+deb12u2 · arm64 · bookworm
  Not affected
  nvd · wolfssl · debian · bookworm
- 5.5.4-2+deb12u3 · amd64 · bookworm-security
  Not affected
  nvd · wolfssl · debian · bookworm
- 5.5.4-2+deb12u3 · arm64 · bookworm-security
  Not affected
  nvd · wolfssl · debian · bookworm
[libwolfssl-dev]Not affected
Source package: [wolfssl]
Details (4)
- 5.5.4-2+deb12u2 · amd64 · bookworm
  Not affected
  nvd · wolfssl · debian · bookworm
- 5.5.4-2+deb12u2 · arm64 · bookworm
  Not affected
  nvd · wolfssl · debian · bookworm
- 5.5.4-2+deb12u3 · amd64 · bookworm-security
  Not affected
  nvd · wolfssl · debian · bookworm
- 5.5.4-2+deb12u3 · arm64 · bookworm-security
  Not affected
  nvd · wolfssl · debian · bookworm

Observed: Oct 23, 2026, 7:48:13 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database]