Linux · openSUSE Leap · Security advisory · August 6, 2026

OPENSUSE-SU-2026:21538-1: bouncycastle security update

OPENSUSE-SU-2026:21538-1, released August 6, 2026, fixes 32 CVEs in bouncycastle (version 1.85-160000.1.1). None of them is reported as exploited. Patch Radar priority: Urgent.

Urgent
CVEs closed
32
3 rated Critical
Exploited
0
None reported
Highest CVSS
9.1
Base score, 0 to 10
Highest EPSS
0.0062
49th percentile

Priority of the 32 CVEs

Patch now 0 Urgent 3 High 21 Routine 8

Fixed package versions

ProductReleaseFixed in
bouncycastleopensuse-leap 16.01.85-160000.1.1

CVEs this fix closes

PriorityCVETitleCVSSEPSSExploitation
Urgent CVE-2026-8763 bouncycastle: In Bouncy Castle for Java before 1.85, Name Constraints bypass via trailing dot in rfc822Name and URI9.1 0.0043 None reported
Urgent CVE-2026-58062 bouncycastle: In Bouncy Castle for Java before 1.85, Stapled OCSP response accepted without binding to the checked certificate9.1 0.0036 None reported
Urgent CVE-2026-59650 bouncycastle: In Bouncy Castle for Java before 1.85, MTI/A0 DH agreement exponentiates unvalidated peer value9.1 0.0034 None reported
High CVE-2026-13586 bouncycastle: This update for bouncycastle fixes the following issues: - CVE-2026-8763: Name Constraints bypass via trailing dot i...7.5 0.0062 None reported
High CVE-2026-58060 bouncycastle: In Bouncy Castle for Java before 1.85, HSS public-key level count unbounded, enabling huge allocation on verify7.5 0.0062 None reported
High CVE-2026-12852 bouncycastle: In Bouncy Castle for Java before 1.85, MLS wire decoder allocates attacker-declared opaque length before bounds check.7.5 0.0049 None reported
High CVE-2026-13506 bouncycastle: This update for bouncycastle fixes the following issues: - CVE-2026-8763: Name Constraints bypass via trailing dot i...7.5 0.0049 None reported
High CVE-2026-14682 bouncycastle: In Bouncy Castle for Java before 1.85, Possible OOM from unbounded up-front allocation on a definite-length read7.5 0.0049 None reported
High CVE-2026-58059 bouncycastle: In Bouncy Castle for Java before 1.85, Quadratic-time escaping when stringifying X.500 distinguished names7.5 0.0049 None reported
High CVE-2026-59644 bouncycastle: In Bouncy Castle for Java before 1.85, MLS hash-ratchet honours arbitrary 32-bit generation counter from sender.7.5 0.0049 None reported
High CVE-2026-59649 eap8-activemq-artemis: In Bouncy Castle for Java before 1.85, OpenPGP user-attribute subpacket length bounded only by JVM max memory7.5 0.0049 None reported
High CVE-2026-59646 bouncycastle: In Bouncy Castle for Java before 1.85, DTLS handshake reassembler allocates buffer from unchecked 24-bit length7.5 0.0047 None reported
High CVE-2026-59645 bouncycastle: In Bouncy Castle for Java before 1.85, OER parser recurses without depth limit on self-referential IEEE 1609.2 schema7.5 0.0041 None reported
High CVE-2026-15055 bouncycastle: This update for bouncycastle fixes the following issues: - CVE-2026-8763: Name Constraints bypass via trailing dot i...8.2 0.0034 None reported
High CVE-2026-59642 bouncycastle: In Bouncy Castle for Java before 1.85, CMS AuthenticatedData content not bound to MAC when authAttrs present7.5 0.0030 None reported
High CVE-2026-12185 bouncycastle: In Bouncy Castle for Java before 1.85, BKS/UBER keystore allocates from untrusted lengths before integrity check8.6 0.0029 None reported
High CVE-2026-58061 bouncycastle: In Bouncy Castle for Java before 1.85, CCM-family modes write plaintext to caller buffer before tag check7.5 0.0028 None reported
High CVE-2026-59639 bouncycastle: In Bouncy Castle for Java before 1.85, CMS verifySignatures returns true for SignedData with zero signers7.5 0.0024 None reported
High CVE-2026-59643 bouncycastle: In Bouncy Castle for Java before 1.85, OpenPGP inline-signature policy failures silently ignored7.5 0.0024 None reported
High CVE-2026-12803 bouncycastle: In Bouncy Castle for Java before 1.85, KCCMBlockCipher MAC does not bind nonce when AAD is absent (cross-nonce AEAD f...7.5 0.0024 None reported
High CVE-2026-59651 bouncycastle: In Bouncy Castle for Java before 1.85, BKS keystore accepts legacy version with 16-bit integrity MAC key7.5 0.0020 None reported
High CVE-2026-12802 bouncycastle: In Bouncy Castle for Java before 1.85, CMS AuthEnvelopedData fails to enforce tag-length on decryption7.5 0.0020 None reported
High CVE-2026-12816 bouncycastle: In Bouncy Castle for Java before 1.85, IESEngine stream-mode MAC forgery via length-dependent KDF split7.5 0.0018 None reported
High CVE-2026-12817 bouncycastle: In Bouncy Castle for Java before 1.85, OpenPGP AEAD decryption skips final tag on chunk-aligned data8.6 0.0017 None reported
Routine CVE-2026-58063 bouncycastle: In Bouncy Castle for Java before 1.85, BCFKS keystore load honours unbounded KDF cost from untrusted file5.3 0.0042 None reported
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