Threats Tagged 'cve-2026-71884'
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Threats Tagged 'cve-2026-71884'
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0 CVE-2026-71884 is a high severity vulnerability in Legion of the Bouncy Castle Inc.'s BC-LTS-JAVA library versions 2.73.4 up to but not including 2.73.13. The native one-shot CTR packet cipher implementation did not validate that the input length fit within the counter space derived from the IV, causing the counter to wrap and the keystream to repeat. This results in two segments of the ciphertext being encrypted under the same keystream, allowing plaintext recovery without the key. The issue is fixed by preflight validation rejecting over-long requests before processing. The streaming implementation and portable AESCTRPacketCipher were not affected. Bouncy Castle for Java (bcprov) is unaffected as it lacks native implementations. Join the discussion | CVE Database V5 | 10/09/2026, 09:30:50 UTC Added: 10/09/2026, 09:49:03 UTC |
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