CVEs

Every issue below went through coordinated disclosure: reported to the maintainers first, and published once a fix or advisory was ready. Severity is as rated in each advisory.

10
OpenSSL

OpenSSL CVEs

In CMP, CMS, CRMF, OCSP and QUIC.

Remediation developer on 1: CVE-2026-75805

All disclosures

Every CVE and advisory, newest first. Click a project above to show only its issues.

May 2026Jun 2026Jul 2026Aug 2026Sep 2026GHSA-qv2q-c278-pch5 · Information disclosure in PasskeyEncipherImage via AES-CTR nonce reuse (Low)GHSA-vf33-6r7x-66xx · Division by zero in the binomial kernel after an integer overflow (Low)CVE-2026-40169 · Heap buffer over-write of a single byte in the JSON and YAML encoders (incomplete earlier fix) (Moderate)CVE-2026-45624 · Heap buffer over-read of 24 bytes in the polynomial distort operation (Moderate)CVE-2026-45358 · Off-by-one heap over-read of a single byte in the meta encoder (Moderate)CVE-2026-45359 · Heap buffer over-read in connected components with an invalid keep-top define (Moderate)CVE-2026-46559 · Heap buffer over-write of a single byte in the JP2 encoder (Moderate)CVE-2026-46557 · Stack overflow in the fx operation from a missing depth check (Moderate)CVE-2026-47166 · Heap buffer over-read in the distributed pixel cache server (Moderate)CVE-2026-47165 · Information disclosure in the distributed pixel cache server: no challenge-response authentication (Moderate)CVE-2026-42766 · Possible NULL dereference in password-based CMS decryption (Low)CVE-2026-42767 · NULL pointer dereference in CRMF EncryptedValue decryption (Low)CVE-2026-9076 · Out-of-bounds read in CMS password-based decryption (kek_unwrap_key) (Low)CVE-2026-53465 · Heap buffer over-write in the SF3 encoder when writing a multi-frame image (Moderate)CVE-2026-53464 · Memory leak in the wand option parser when providing invalid arguments (Moderate)CVE-2026-53463 · NULL pointer dereference in the distort operation when passing incorrect arguments (Moderate)CVE-2026-10097 · ML-KEM-1024 AVX2 decapsulation compares only 1536 of 1568 ciphertext bytes; IND-CCA2 break and static private-key recovery (High)GHSA-cvhv-g4rq-3hmw · Memory leak when providing invalid options to the magick CLI (Low)CVE-2026-54876 · Client-side memory leak in OCSP response checking (Low)RUSTSEC-2026-0290 · pqc_kyber: AVX2 backend skips Fujisaki–Okamoto implicit rejection, enabling chosen-ciphertext key recovery (High)RUSTSEC-2026-0288 · cosmian_kyber: AVX2 backend skips Fujisaki–Okamoto implicit rejection, enabling chosen-ciphertext key recovery (High)CVE-2026-63072 · Heap buffer overflow in CMS key unwrapping (Moderate)CVE-2026-63076 · Invalid pointer dereference in CMP server via crafted protectionAlg (Moderate)CVE-2026-84784 · QUIC: Unbounded RETIRE_CONNECTION_ID backlog (Low)CVE-2026-75805 · NULL pointer dereference in CMP client revocation response handling (Low)CVE-2026-75804 · QUIC connection-level flow control not enforced for streams (Low)CVE-2026-54873 · QUIC STREAM fragment metadata DoS (Low)GHSA-7vfm-9mfh-j8p5 · DMTF-2026-0004: libspdm_x509_verify_cert_chain() does not verify CA nameConstraints / pathLenConstraint (Moderate)
LowModerateHighone dot per disclosure, stacked by publication week
PublishedIDIssueComponentSeverity
CVE-2026-84784QUIC: Unbounded RETIRE_CONNECTION_ID backlogOpenSSL / QUICLow
CVE-2026-75805NULL pointer dereference in CMP client revocation response handlingAlso credited as remediation developerOpenSSL / CMPLow
CVE-2026-75804QUIC connection-level flow control not enforced for streamsOpenSSL / QUICLow
CVE-2026-54873QUIC STREAM fragment metadata DoSOpenSSL / QUICLow
GHSA-7vfm-9mfh-j8p5DMTF-2026-0004: libspdm_x509_verify_cert_chain() does not verify CA nameConstraints / pathLenConstraintlibspdm / X.509Moderate
RUSTSEC-2026-0289pqc_kyber is unmaintainedRustSec / pqc_kyberInfo
RUSTSEC-2026-0287cosmian_kyber is unmaintainedRustSec / cosmian_kyberInfo
CVE-2026-63072Heap buffer overflow in CMS key unwrappingOpenSSL / CMSModerate
CVE-2026-63076Invalid pointer dereference in CMP server via crafted protectionAlgOpenSSL / CMPModerate
RUSTSEC-2026-0290pqc_kyber: AVX2 backend skips Fujisaki–Okamoto implicit rejection, enabling chosen-ciphertext key recoveryRustSec / pqc_kyberHigh
RUSTSEC-2026-0288cosmian_kyber: AVX2 backend skips Fujisaki–Okamoto implicit rejection, enabling chosen-ciphertext key recoveryRustSec / cosmian_kyberHigh
CVE-2026-54876Client-side memory leak in OCSP response checkingOpenSSL / OCSPLow
GHSA-cvhv-g4rq-3hmwMemory leak when providing invalid options to the magick CLIImageMagick / CLILow
CVE-2026-10097ML-KEM-1024 AVX2 decapsulation compares only 1536 of 1568 ciphertext bytes; IND-CCA2 break and static private-key recoveryThe ARM64 NEON counterpart, CVE-2026-6330, was found independently by Nicholas Carlini of Anthropic and published the same day.wolfSSL / ML-KEMHigh
CVE-2026-42766Possible NULL dereference in password-based CMS decryptionOpenSSL / CMSLow
CVE-2026-42767NULL pointer dereference in CRMF EncryptedValue decryptionOpenSSL / CRMFLow
CVE-2026-9076Out-of-bounds read in CMS password-based decryption (kek_unwrap_key)OpenSSL / CMSLow
CVE-2026-53465Heap buffer over-write in the SF3 encoder when writing a multi-frame imageImageMagick / EncodersModerate
CVE-2026-53464Memory leak in the wand option parser when providing invalid argumentsImageMagick / CLIModerate
CVE-2026-53463NULL pointer dereference in the distort operation when passing incorrect argumentsImageMagick / DistortModerate
CVE-2026-47166Heap buffer over-read in the distributed pixel cache serverImageMagick / Pixel cacheModerate
CVE-2026-47165Information disclosure in the distributed pixel cache server: no challenge-response authenticationImageMagick / Pixel cacheModerate
CVE-2026-46559Heap buffer over-write of a single byte in the JP2 encoderImageMagick / EncodersModerate
CVE-2026-46557Stack overflow in the fx operation from a missing depth checkImageMagick / OperatorsModerate
GHSA-qv2q-c278-pch5Information disclosure in PasskeyEncipherImage via AES-CTR nonce reuseImageMagick / CipherLow
GHSA-vf33-6r7x-66xxDivision by zero in the binomial kernel after an integer overflowImageMagick / OperatorsLow
CVE-2026-40169Heap buffer over-write of a single byte in the JSON and YAML encoders (incomplete earlier fix)ImageMagick / EncodersModerate
CVE-2026-45624Heap buffer over-read of 24 bytes in the polynomial distort operationImageMagick / DistortModerate
CVE-2026-45358Off-by-one heap over-read of a single byte in the meta encoderImageMagick / EncodersModerate
CVE-2026-45359Heap buffer over-read in connected components with an invalid keep-top defineImageMagick / OperatorsModerate

CVE IDs link to their official cve.org records; GHSA and RUSTSEC IDs link to the advisory.

Acknowledged in release notes

Fixes credited to me in release notes and changelogs, without an advisory.

Mentions

Advisories, mailing-list posts and articles that cover these issues.

  1. OpenSSL vulnerability list Official OpenSSL advisories, credits and affected versions
  2. GitHub Advisory Database, credit:007bsd All GitHub-published advisories crediting 007bsd
  3. Ubuntu Security Notice USN-8414-1 Ubuntu OpenSSL update for the June advisory
  4. oss-security CVE-2026-54876: client-side memory leak in OCSP response checking
  5. HOL Guard Write-up of CVE-2026-63072
  6. shattered.io (French) Article on the August OpenSSL bulletin; names CVE-2026-63072 and its reporters
  7. Cybersecurity News Article on the August OpenSSL release; covers CVE-2026-63072
  8. GBHackers Article on the August OpenSSL release; covers CVE-2026-63072
  9. Cyberpress Article on the August OpenSSL release; covers CVE-2026-63072
  10. Open Source For You Article on OpenSSL 4.0.2; covers CVE-2026-63072