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High ALAS2023-2026-2153 16 CVEs

Important: bouncycastle security update (Amazon Linux 2023)

Published Sep 14, 2026 · Updated Sep 14, 2026

Ecosystem: Amazon Linux

Summary

Package updates are available for Amazon Linux 2023 that fix the following vulnerabilities: CVE-2026-8763: In Bouncy Castle for Java before 1.85, Name Constraints bypass via trailing dot in rfc822Name and URI. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bc-fips 1.0.2.7 (1.0.X series), 2.0.2 (2.0.X series) and 2.1.3 (2.1.X series). CVE-2026-59650: In Bouncy Castle for Java before 1.85, MTI/A0 DH agreement exponentiates unvalidated peer value. This issue also affects Bouncy Castle for Java LTS before 2.73.12. CVE-2026-59649: In Bouncy Castle for Java before 1.85, OpenPGP user-attribute subpacket length bounded only by JVM max memory. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bcpg-fips 1.0.13 (1.0.X series), 2.0.13 (2.0.X series) and 2.1.13 (2.1.X series). CVE-2026-59646: In Bouncy Castle for Java before 1.85, DTLS handshake reassembler allocates buffer from unchecked 24-bit length. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bctls-fips 1.0.24 (1.0.X series), 2.0.24 (2.0.X series) and 2.1.24 (2.1.X series). CVE-2026-59645: In Bouncy Castle for Java before 1.85, OER parser recurses without depth limit on self-referential IEEE 1609.2 schema. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bcutil-fips 2.0.7 (2.0.X series) and 2.1.7 (2.1.X series). CVE-2026-59642: In Bouncy Castle for Java before 1.85, CMS AuthenticatedData content not bound to MAC when authAttrs present. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bcpkix-fips 1.0.12 (1.0.X series), 2.0.12 (2.0.X series) and 2.1.12 (2.1.X series). CVE-2026-59641: In Bouncy Castle for Java before 1.85, S/MIME validator trusts signer-asserted signingTime for path validation. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bcmail-fips and bcjmail-fips 1.0.7 (1.0.X series), 2.0.7 (2.0.X series) and 2.1.7 (2.1.X series). CVE-2026-59639: In Bouncy Castle for Java before 1.85, CMS verifySignatures returns true for SignedData with zero signers. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bcpkix-fips 1.0.12 (1.0.X series), 2.0.12 (2.0.X series) and 2.1.12 (2.1.X series). CVE-2026-59638: In Bouncy Castle for Java before 1.85, JSSE hostname verifier CN-fallback enabled by default despite documented opt-in. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bctls-fips 1.0.24 (1.0.X series), 2.0.24 (2.0.X series) and 2.1.24 (2.1.X series). CVE-2026-58062: In Bouncy Castle for Java before 1.85, Stapled OCSP response accepted without binding to the checked certificate. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bc-fips 2.0.2 (2.0.X series) and 2.1.3 (2.1.X series). CVE-2026-58061: In Bouncy Castle for Java before 1.85, CCM-family modes write plaintext to caller buffer before tag check. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bc-fips 1.0.2.7 (1.0.X series), 2.0.2 (2.0.X series) and 2.1.3 (2.1.X series). CVE-2026-58060: In Bouncy Castle for Java before 1.85, HSS public-key level count unbounded, enabling huge allocation on verify. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bc-fips 2.0.2 (2.0.X series) and 2.1.3 (2.1.X series). CVE-2026-58059: In Bouncy Castle for Java before 1.85, Quadratic-time escaping when stringifying X.500 distinguished names. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bc-fips 1.0.2.7 (1.0.X series), 2.0.2 (2.0.X series) and 2.1.3 (2.1.X series). CVE-2026-14682: In Bouncy Castle for Java before 1.85, Possible OOM from unbounded up-front allocation on a definite-length read. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bc-fips 1.0.2.7 (1.0.X series), 2.0.2 (2.0.X series) and 2.1.3 (2.1.X series), and before bctls-fips 1.0.24. CVE-2026-13506: In Bouncy Castle for Java before 1.85, Lazy ASN.1 sequence forcing resets nesting-depth guard. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bc-fips 1.0.2.7 (1.0.X series), 2.0.2 (2.0.X series) and 2.1.3 (2.1.X series). CVE-2026-12803: In Bouncy Castle for Java before 1.85, KCCMBlockCipher MAC does not bind nonce when AAD is absent (cross-nonce AEAD forgery). This issue also affects Bouncy Castle for Java LTS before 2.73.12.

Fixed packages 7

ReleasePackageFixed in
Amazon Linux · 2023 bouncycastle 0:1.70-4.amzn2023.0.8
Amazon Linux · 2023 bouncycastle-javadoc 0:1.70-4.amzn2023.0.8
Amazon Linux · 2023 bouncycastle-mail 0:1.70-4.amzn2023.0.8
Amazon Linux · 2023 bouncycastle-pg 0:1.70-4.amzn2023.0.8
Amazon Linux · 2023 bouncycastle-pkix 0:1.70-4.amzn2023.0.8
Amazon Linux · 2023 bouncycastle-tls 0:1.70-4.amzn2023.0.8
Amazon Linux · 2023 bouncycastle-util 0:1.70-4.amzn2023.0.8

Vulnerabilities 16

  • Critical 9.3
    CVE-2026-58062 Public exploit

    Stapled OCSP response accepted without binding to the checked certificate

    In Bouncy Castle for Java before 1.85, Stapled OCSP response accepted without binding to the checked certificate. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bc-fips 2.0.2 (2.0.X series) a…

    Legion of the Bouncy Castle BC-JAVA BC-LTS-JAVA BC-FJA Debian Ubuntu Wolfi
  • Critical 9.3
    CVE-2026-59638

    JSSE hostname verifier CN-fallback enabled by default despite documented opt-in

    In Bouncy Castle for Java before 1.85, JSSE hostname verifier CN-fallback enabled by default despite documented opt-in. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bctls-fips 1.0.24 (1.0.X…

    Legion of the Bouncy Castle BC-JAVA BC-LTS-JAVA BC-FJA Debian Ubuntu
  • Critical 9.3
    CVE-2026-59650

    MTI/A0 DH agreement exponentiates unvalidated peer value

    In Bouncy Castle for Java before 1.85, MTI/A0 DH agreement exponentiates unvalidated peer value. This issue also affects Bouncy Castle for Java LTS before 2.73.12.

    Legion of the Bouncy Castle BC-JAVA BC-LTS-JAVA keycloak-26.6-iamguarded-compat Debian Ubuntu Wolfi
  • Critical 9.3
    CVE-2026-8763

    Name Constraints bypass via trailing dot in rfc822Name and URI

    In Bouncy Castle for Java before 1.85, Name Constraints bypass via trailing dot in rfc822Name and URI. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bc-fips 1.0.2.7 (1.0.X series), 2.0.2 (2.…

    Legion of the Bouncy Castle BC-JAVA BC-LTS-JAVA BC-FJA Debian Ubuntu Wolfi Maven
  • High 8.7
    CVE-2026-12803

    KCCMBlockCipher MAC does not bind nonce when AAD is absent (cross-nonce AEAD forgery)

    In Bouncy Castle for Java before 1.85, KCCMBlockCipher MAC does not bind nonce when AAD is absent (cross-nonce AEAD forgery). This issue also affects Bouncy Castle for Java LTS before 2.73.12.

    Legion of the Bouncy Castle BC-JAVA BC-LTS-JAVA bouncycastle Debian Ubuntu
  • High 8.7
    CVE-2026-13506

    Lazy ASN.1 sequence forcing resets nesting-depth guard

    In Bouncy Castle for Java before 1.85, Lazy ASN.1 sequence forcing resets nesting-depth guard. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bc-fips 1.0.2.7 (1.0.X series), 2.0.2 (2.0.X seri…

    Legion of the Bouncy Castle BC-JAVA BC-LTS-JAVA BC-FJA Debian Ubuntu Wolfi Maven
  • High 8.7
    CVE-2026-14682

    Possible OOM from unbounded up-front allocation on a definite-length read

    In Bouncy Castle for Java before 1.85, Possible OOM from unbounded up-front allocation on a definite-length read. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bc-fips 1.0.2.7 (1.0.X series)…

    Legion of the Bouncy Castle BC-JAVA BC-LTS-JAVA BC-FJA Debian Ubuntu
  • High 8.7
    CVE-2026-58059

    Quadratic-time escaping when stringifying X.500 distinguished names

    In Bouncy Castle for Java before 1.85, Quadratic-time escaping when stringifying X.500 distinguished names. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bc-fips 1.0.2.7 (1.0.X series), 2.0.…

    Legion of the Bouncy Castle BC-JAVA BC-LTS-JAVA BC-FJA Debian Ubuntu
  • High 8.7
    CVE-2026-58060

    HSS public-key level count unbounded, enabling huge allocation on verify

    In Bouncy Castle for Java before 1.85, HSS public-key level count unbounded, enabling huge allocation on verify. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bc-fips 2.0.2 (2.0.X series) an…

    Legion of the Bouncy Castle BC-JAVA BC-LTS-JAVA BC-FJA Debian Ubuntu
  • High 8.7
    CVE-2026-58061

    CCM-family modes write plaintext to caller buffer before tag check

    In Bouncy Castle for Java before 1.85, CCM-family modes write plaintext to caller buffer before tag check. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bc-fips 1.0.2.7 (1.0.X series), 2.0.2…

    Legion of the Bouncy Castle BC-JAVA BC-LTS-JAVA BC-FJA Debian Ubuntu
  • High 8.7
    CVE-2026-59639

    CMS verifySignatures returns true for SignedData with zero signers

    In Bouncy Castle for Java before 1.85, CMS verifySignatures returns true for SignedData with zero signers. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bcpkix-fips 1.0.12 (1.0.X series), 2.…

    Legion of the Bouncy Castle BC-JAVA BC-LTS-JAVA BC-FJA Debian Ubuntu
  • High 8.7
    CVE-2026-59641

    S/MIME validator trusts signer-asserted signingTime for path validation

    In Bouncy Castle for Java before 1.85, S/MIME validator trusts signer-asserted signingTime for path validation. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bcmail-fips and bcjmail-fips 1.0…

    Legion of the Bouncy Castle BC-JAVA BC-LTS-JAVA BC-FJA Debian Ubuntu
  • High 8.7
    CVE-2026-59642

    CMS AuthenticatedData content not bound to MAC when authAttrs present

    In Bouncy Castle for Java before 1.85, CMS AuthenticatedData content not bound to MAC when authAttrs present. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bcpkix-fips 1.0.12 (1.0.X series),…

    Legion of the Bouncy Castle BC-JAVA BC-LTS-JAVA BC-FJA Debian Ubuntu
  • High 8.7
    CVE-2026-59645

    OER parser recurses without depth limit on self-referential IEEE 1609.2 schema

    In Bouncy Castle for Java before 1.85, OER parser recurses without depth limit on self-referential IEEE 1609.2 schema. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bcutil-fips 2.0.7 (2.0.X …

    Legion of the Bouncy Castle BC-JAVA BC-LTS-JAVA BC-FJA Debian Ubuntu
  • High 8.7
    CVE-2026-59646

    DTLS handshake reassembler allocates buffer from unchecked 24-bit length

    In Bouncy Castle for Java before 1.85, DTLS handshake reassembler allocates buffer from unchecked 24-bit length. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bctls-fips 1.0.24 (1.0.X series…

    Legion of the Bouncy Castle BC-JAVA BC-LTS-JAVA BC-FJA Debian Ubuntu
  • High 8.7
    CVE-2026-59649

    OpenPGP user-attribute subpacket length bounded only by JVM max memory

    In Bouncy Castle for Java before 1.85, OpenPGP user-attribute subpacket length bounded only by JVM max memory. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bcpg-fips 1.0.13 (1.0.X series), …

    Legion of the Bouncy Castle BC-JAVA BC-LTS-JAVA BC-FJA Debian Ubuntu

References

  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-12803.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-13506.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-14682.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-58059.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-58060.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-58061.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-58062.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-59638.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-59639.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-59641.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-59642.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-59645.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-59646.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-59649.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-59650.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-8763.html