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High severity7.5OSV Advisory· Published Jun 25, 2026· Updated Jun 26, 2026

CVE-2026-55967

CVE-2026-55967

Description

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.

Affected products

3
  • WolfSSL/WolfsslOSV3 versions
    v5.9.1-stable, v5.9.0-stable, v5.8.4-stable, …+ 2 more
    • (no CPE)range: v5.9.1-stable, v5.9.0-stable, v5.8.4-stable, …
    • cpe:2.3:a:wolfssl:wolfssl:*:*:*:*:*:*:*:*range: >=4.8.0,<5.9.2
    • (no CPE)

Patches

Vulnerability mechanics

References

2

News mentions

0

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