CVE-2026-55967

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2026-55967
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-55967.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-55967
Downstream
Published
2026-06-25T16:53:14.695Z
Modified
2026-08-12T03:51:15.321795Z
Severity
  • 2.0 (Low) CVSS_V4 - 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 CVSS Calculator
Summary
AES-GCM streaming APIs do not reject >64 GiB cumulative single messages, enabling counter wrap and keystream reuse
Details

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.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55967.json",
    "cwe_ids": [
        "CWE-323"
    ],
    "cna_assigner": "wolfSSL"
}
References

Affected packages

Git / github.com/wolfssl/wolfssl

Affected ranges

Type
GIT
Repo
https://github.com/wolfssl/wolfssl
Events
Introduced
add4a68465bcdad238bcf3e5f2771d8da05e6285
Fixed
ac01707f552c611fbd135cc723b2682b3e7f80f2
Database specific
Show details 
{
    "source": [
        "AFFECTED_FIELD",
        "CPE_RANGE"
    ],
    "cpe": "cpe:2.3:a:wolfssl:wolfssl:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "4.8.0"
        },
        {
            "last_affected": "5.9.1"
        },
        {
            "fixed": "5.9.2"
        }
    ]
}

Affected versions

WCv5.*
WCv5.0-RC10
WCv5.0-RC11
WCv5.0-RC12
WCv5.0-RC9
v4.*
v4.8.0-stable
v5.*
v5.0.0-stable
v5.1.0-stable
v5.2.0-stable
v5.2.1
v5.3.0-stable
v5.4.0-stable
v5.5.0-stable
v5.5.1-stable
v5.5.2-stable
v5.5.3-stable
v5.5.4-stable
v5.6.0-stable
v5.6.2-stable
v5.6.3-stable
v5.6.4-stable
v5.6.6-stable
v5.7.0-stable
v5.7.2-stable
v5.7.4-stable
v5.7.6-stable
v5.8.0-stable
v5.8.2-stable
v5.8.4-stable
v5.9.0-stable
v5.9.1-stable
Other
wolfEntropy1
wolfEntropy2d

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-55967.json"