CVE catalog
CVE-2026-55967
AES-GCM encryption/decryption with extremely large cumulative single message sizes (>64 GiB) were not properly rejected by the streaming APIs, allowing counter wrap, keystream reuse, and consequent pl
- Severity
- Low · CVSS 2
CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:L/VI:N/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
- Source
- [NVD] · [CVE record]
- EPSS
- 0.18% · Oct 25, 2026
AES-GCM encryption/decryption with extremely large cumulative single message sizes (>64 GiB) were not properly rejected by the streaming APIs, allowing counter wrap, keystream reuse, and consequent plaintext recovery.
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 | fixed |
| Debian | wolfssl | bookworm | 5.5.4-2+deb12u2 | vulnerable |
| Debian | wolfssl | bookworm-security | 5.5.4-2+deb12u3 | fixed |
| Cpe | wolfssl | Not reported | Not reported | vulnerable |
| Cpe | wolfssl | Not reported | 5.9.2 | fixed |
| Cpe | wolfssl | Not reported | 5.9.2 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | wolfssl | source | sid | 5.9.2-1 | not yet assigned | Not reported | [1140765] |
| Debian | wolfssl | source | trixie | 5.7.2-0.1+deb13u2 | not yet assigned | Not reported | [1140765] |
| Debian | wolfssl | source | bookworm | 5.5.4-2+deb12u3 | not yet assigned | Not reported | [1140765] |
| Cpe | wolfssl | cpe | Not reported | 5.9.2 | Not reported | Not reported | Not reported |
| Cpe | wolfssl | cpe | Not reported | 5.9.2 | Not reported | NVD-CVE-2026-55967 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libwolfssl35]Affected
Source package: [wolfssl]
Details (4)
5.5.4-2+deb12u2· amd64 · bookwormAffected · Fixed:
5.5.4-2+deb12u3nvd · wolfssl · debian · bookworm; nvd · wolfssl · debian · 12
5.5.4-2+deb12u2· arm64 · bookwormAffected · Fixed:
5.5.4-2+deb12u3nvd · wolfssl · debian · bookworm; nvd · wolfssl · debian · 12
5.5.4-2+deb12u3· amd64 · bookworm-securityFixed · Fixed:
5.5.4-2+deb12u3nvd · wolfssl · debian · bookworm; nvd · wolfssl · debian · 12
5.5.4-2+deb12u3· arm64 · bookworm-securityFixed · Fixed:
5.5.4-2+deb12u3nvd · wolfssl · debian · bookworm; nvd · wolfssl · debian · 12
- [libwolfssl-dev]Affected
Source package: [wolfssl]
Details (4)
5.5.4-2+deb12u2· amd64 · bookwormAffected · Fixed:
5.5.4-2+deb12u3nvd · wolfssl · debian · bookworm; nvd · wolfssl · debian · 12
5.5.4-2+deb12u2· arm64 · bookwormAffected · Fixed:
5.5.4-2+deb12u3nvd · wolfssl · debian · bookworm; nvd · wolfssl · debian · 12
5.5.4-2+deb12u3· amd64 · bookworm-securityFixed · Fixed:
5.5.4-2+deb12u3nvd · wolfssl · debian · bookworm; nvd · wolfssl · debian · 12
5.5.4-2+deb12u3· arm64 · bookworm-securityFixed · Fixed:
5.5.4-2+deb12u3nvd · wolfssl · debian · bookworm; nvd · wolfssl · debian · 12
[Debian 13 (Trixie)]
- [libwolfssl42t64]Affected
Source package: [wolfssl]
Details (2)
5.7.2-0.1+deb13u1· amd64 · trixieAffected · Fixed:
5.7.2-0.1+deb13u2nvd · wolfssl · debian · 13
5.7.2-0.1+deb13u1· arm64 · trixieAffected · Fixed:
5.7.2-0.1+deb13u2nvd · wolfssl · debian · 13
- [libwolfssl-dev]Affected
Source package: [wolfssl]
Details (2)
5.7.2-0.1+deb13u1· amd64 · trixieAffected · Fixed:
5.7.2-0.1+deb13u2nvd · wolfssl · debian · 13
5.7.2-0.1+deb13u1· arm64 · trixieAffected · Fixed:
5.7.2-0.1+deb13u2nvd · wolfssl · debian · 13
Observed:
References
- [https://github.com/wolfSSL/wolfssl/pull/10709]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-55967]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-55967]
- [https://security-tracker.debian.org/tracker/CVE-2026-55967]
- [https://www.wolfssl.com/docs/security-vulnerabilities/]
[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database]