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CVE-2026-59648 OpenPGP Argon2 S2K honours attacker-chosen memory and passes

🗓️ 03 Aug 2026 00:45:34Reported by bcorgType 
cvelist
 cvelist
🔗 www.cve.org👁 56 Views

CVE-2026-59648 OpenPGP Argon2 S2K honors attacker memory in Bouncy Castle Java before 1.85 and 2.73.12, and in FIPS before 1.0.13, 2.0.13, 2.1.13.

Related
Affected
Refs
[
  {
    "vendor": "Legion of the Bouncy Castle Inc.",
    "product": "BC-JAVA",
    "platforms": [
      "all"
    ],
    "collectionURL": "https://www.bouncycastle.org/download/bouncy-castle-java/",
    "packageName": "bcpg",
    "repo": "https://github.com/bcgit/bc-java",
    "packageURL": "pkg:maven/org.bouncycastle/bcpg-jdk18on",
    "modules": [
      "pg"
    ],
    "programFiles": [
      "PGPS2KCalculator",
      "BcPGPS2KCalculator",
      "JcaPGPS2KCalculator"
    ],
    "versions": [
      {
        "status": "affected",
        "version": "1.71",
        "lessThan": "1.85",
        "versionType": "maven"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "Legion of the Bouncy Castle Inc.",
    "product": "BC-LTS-JAVA",
    "platforms": [
      "all"
    ],
    "collectionURL": "https://www.bouncycastle.org/download/bouncy-castle-java-lts/",
    "packageName": "bcpg-lts8on",
    "repo": "https://github.com/bcgit/bc-lts-java",
    "packageURL": "pkg:maven/org.bouncycastle/bcpg-lts8on",
    "modules": [
      "pg"
    ],
    "programFiles": [
      "PGPS2KCalculator",
      "BcPGPS2KCalculator"
    ],
    "versions": [
      {
        "status": "affected",
        "version": "2.73.0",
        "lessThan": "2.73.12",
        "versionType": "maven"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "Legion of the Bouncy Castle Inc.",
    "product": "BC-FJA",
    "platforms": [
      "all"
    ],
    "collectionURL": "https://www.bouncycastle.org/download/bouncy-castle-java-fips/",
    "packageName": "bcpg-fips",
    "packageURL": "pkg:maven/org.bouncycastle/bcpg-fips",
    "versions": [
      {
        "status": "affected",
        "version": "1.0.6",
        "lessThan": "1.0.13",
        "versionType": "maven"
      },
      {
        "status": "affected",
        "version": "2.0.0",
        "lessThan": "2.0.13",
        "versionType": "maven"
      },
      {
        "status": "affected",
        "version": "2.1.0",
        "lessThan": "2.1.13",
        "versionType": "maven"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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03 Aug 2026 04:58Current
CVSS 46.9
EPSS0.00263
56