Vulnerability-Lookup

CVE-2026-58062 (GCVE-0-2026-58062)

Vulnerability from cvelistv5 – Published: 2026-08-03 02:35 – Updated: 2026-08-03 18:27

Title

Stapled OCSP response accepted without binding to the checked certificate

Summary

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).

Severity

9.3 (Critical)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/U:Amber

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-295 - Improper Certificate Validation

Assigner

bcorg

References

2 references

URL	Tags
https://github.com/bcgit/bc-java/wiki/CVE%E2%80%9…	vendor-advisory
https://github.com/bcgit/bc-java/commit/add5f8226…	patch

Impacted products

3 products

Vendor	Product	Version
Legion of the Bouncy Castle Inc.	BC-JAVA	Affected: 1.66 , < 1.85 (maven)
Legion of the Bouncy Castle Inc.	BC-LTS-JAVA	Affected: 2.73.0 , < 2.73.12 (maven)
Legion of the Bouncy Castle Inc.	BC-FJA	Affected: 2.0.0 , < 2.0.2 (maven) Affected: 2.1.0 , < 2.1.3 (maven)

Credits

Alex Gaynor in collaboration with Claude and Anthropic Research

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-58062",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-03T18:26:59.650741Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-03T18:27:07.645Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://www.bouncycastle.org/download/bouncy-castle-java/",
          "defaultStatus": "unaffected",
          "modules": [
            "prov"
          ],
          "packageName": "bcprov",
          "packageURL": "pkg:maven/org.bouncycastle/bcprov-jdk18on",
          "platforms": [
            "all"
          ],
          "product": "BC-JAVA",
          "programFiles": [
            "ProvOcspRevocationChecker"
          ],
          "repo": "https://github.com/bcgit/bc-java",
          "vendor": "Legion of the Bouncy Castle Inc.",
          "versions": [
            {
              "lessThan": "1.85",
              "status": "affected",
              "version": "1.66",
              "versionType": "maven"
            }
          ]
        },
        {
          "collectionURL": "https://www.bouncycastle.org/download/bouncy-castle-java-lts/",
          "defaultStatus": "unaffected",
          "modules": [
            "prov"
          ],
          "packageName": "bcprov-lts8on",
          "packageURL": "pkg:maven/org.bouncycastle/bcprov-lts8on",
          "platforms": [
            "all"
          ],
          "product": "BC-LTS-JAVA",
          "programFiles": [
            "ProvOcspRevocationChecker"
          ],
          "repo": "https://github.com/bcgit/bc-lts-java",
          "vendor": "Legion of the Bouncy Castle Inc.",
          "versions": [
            {
              "lessThan": "2.73.12",
              "status": "affected",
              "version": "2.73.0",
              "versionType": "maven"
            }
          ]
        },
        {
          "collectionURL": "https://www.bouncycastle.org/download/bouncy-castle-java-fips/",
          "defaultStatus": "unaffected",
          "packageName": "bc-fips",
          "packageURL": "pkg:maven/org.bouncycastle/bc-fips",
          "platforms": [
            "all"
          ],
          "product": "BC-FJA",
          "vendor": "Legion of the Bouncy Castle Inc.",
          "versions": [
            {
              "lessThan": "2.0.2",
              "status": "affected",
              "version": "2.0.0",
              "versionType": "maven"
            },
            {
              "lessThan": "2.1.3",
              "status": "affected",
              "version": "2.1.0",
              "versionType": "maven"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "Alex Gaynor in collaboration with Claude and Anthropic Research"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
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              "value": "\u003cp\u003eIn 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).\u003c/p\u003e"
            }
          ],
          "value": "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)."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 9.3,
            "baseSeverity": "CRITICAL",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "AMBER",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/U:Amber",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-295",
              "description": "CWE-295 Improper Certificate Validation",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-03T05:48:56.603Z",
        "orgId": "91579145-5d7b-4cc5-b925-a0262ff19630",
        "shortName": "bcorg"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902026%E2%80%9058062"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/bcgit/bc-java/commit/add5f822660f3b2c29fd824e2f4095469c42a1c7"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Stapled OCSP response accepted without binding to the checked certificate",
      "x_generator": {
        "engine": "bc release-notes template"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "91579145-5d7b-4cc5-b925-a0262ff19630",
    "assignerShortName": "bcorg",
    "cveId": "CVE-2026-58062",
    "datePublished": "2026-08-03T02:35:28.180Z",
    "dateReserved": "2026-06-28T01:21:46.334Z",
    "dateUpdated": "2026-08-03T18:27:07.645Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-58062",
      "date": "2026-08-03",
      "epss": "0.00203",
      "percentile": "0.10435"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-58062\",\"sourceIdentifier\":\"91579145-5d7b-4cc5-b925-a0262ff19630\",\"published\":\"2026-08-03T03:16:45.640\",\"lastModified\":\"2026-08-03T07:16:43.970\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"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).\"}],\"affected\":[{\"source\":\"91579145-5d7b-4cc5-b925-a0262ff19630\",\"affectedData\":[{\"vendor\":\"Legion of the Bouncy Castle Inc.\",\"product\":\"BC-JAVA\",\"defaultStatus\":\"unaffected\",\"collectionURL\":\"https://www.bouncycastle.org/download/bouncy-castle-java/\",\"packageName\":\"bcprov\",\"modules\":[\"prov\"],\"platforms\":[\"all\"],\"programFiles\":[\"ProvOcspRevocationChecker\"],\"repo\":\"https://github.com/bcgit/bc-java\",\"packageURL\":\"pkg:maven/org.bouncycastle/bcprov-jdk18on\",\"versions\":[{\"version\":\"1.66\",\"lessThan\":\"1.85\",\"versionType\":\"maven\",\"status\":\"affected\"}]},{\"vendor\":\"Legion of the Bouncy Castle Inc.\",\"product\":\"BC-LTS-JAVA\",\"defaultStatus\":\"unaffected\",\"collectionURL\":\"https://www.bouncycastle.org/download/bouncy-castle-java-lts/\",\"packageName\":\"bcprov-lts8on\",\"modules\":[\"prov\"],\"platforms\":[\"all\"],\"programFiles\":[\"ProvOcspRevocationChecker\"],\"repo\":\"https://github.com/bcgit/bc-lts-java\",\"packageURL\":\"pkg:maven/org.bouncycastle/bcprov-lts8on\",\"versions\":[{\"version\":\"2.73.0\",\"lessThan\":\"2.73.12\",\"versionType\":\"maven\",\"status\":\"affected\"}]},{\"vendor\":\"Legion of the Bouncy Castle Inc.\",\"product\":\"BC-FJA\",\"defaultStatus\":\"unaffected\",\"collectionURL\":\"https://www.bouncycastle.org/download/bouncy-castle-java-fips/\",\"packageName\":\"bc-fips\",\"platforms\":[\"all\"],\"packageURL\":\"pkg:maven/org.bouncycastle/bc-fips\",\"versions\":[{\"version\":\"2.0.0\",\"lessThan\":\"2.0.2\",\"versionType\":\"maven\",\"status\":\"affected\"},{\"version\":\"2.1.0\",\"lessThan\":\"2.1.3\",\"versionType\":\"maven\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"91579145-5d7b-4cc5-b925-a0262ff19630\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"vectorString\":\"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Amber\",\"baseScore\":9.3,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"attackRequirements\":\"NONE\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"vulnConfidentialityImpact\":\"HIGH\",\"vulnIntegrityImpact\":\"HIGH\",\"vulnAvailabilityImpact\":\"NONE\",\"subConfidentialityImpact\":\"NONE\",\"subIntegrityImpact\":\"NONE\",\"subAvailabilityImpact\":\"NONE\",\"exploitMaturity\":\"NOT_DEFINED\",\"confidentialityRequirement\":\"NOT_DEFINED\",\"integrityRequirement\":\"NOT_DEFINED\",\"availabilityRequirement\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedVulnIntegrityImpact\":\"NOT_DEFINED\",\"modifiedVulnAvailabilityImpact\":\"NOT_DEFINED\",\"modifiedSubConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedSubIntegrityImpact\":\"NOT_DEFINED\",\"modifiedSubAvailabilityImpact\":\"NOT_DEFINED\",\"Safety\":\"NOT_DEFINED\",\"Automatable\":\"NOT_DEFINED\",\"Recovery\":\"NOT_DEFINED\",\"valueDensity\":\"NOT_DEFINED\",\"vulnerabilityResponseEffort\":\"NOT_DEFINED\",\"providerUrgency\":\"AMBER\"}}]},\"weaknesses\":[{\"source\":\"91579145-5d7b-4cc5-b925-a0262ff19630\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-295\"}]}],\"references\":[{\"url\":\"https://github.com/bcgit/bc-java/commit/add5f822660f3b2c29fd824e2f4095469c42a1c7\",\"source\":\"91579145-5d7b-4cc5-b925-a0262ff19630\"},{\"url\":\"https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902026%E2%80%9058062\",\"source\":\"91579145-5d7b-4cc5-b925-a0262ff19630\"}]}}"
  }
}

GHSA-J295-77C3-9FRF

Vulnerability from github – Published: 2026-08-03 03:31 – Updated: 2026-08-03 09:32

Details

Severity

9.3 (Critical)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/U:Amber

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-58062"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-295"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-03T03:16:45Z",
    "severity": "CRITICAL"
  },
  "details": "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).",
  "id": "GHSA-j295-77c3-9frf",
  "modified": "2026-08-03T09:32:36Z",
  "published": "2026-08-03T03:31:57Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-58062"
    },
    {
      "type": "WEB",
      "url": "https://github.com/bcgit/bc-java/commit/add5f822660f3b2c29fd824e2f4095469c42a1c7"
    },
    {
      "type": "WEB",
      "url": "https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902026%E2%80%9058062"
    },
    {
      "type": "WEB",
      "url": "https://github.com/bcgit/bc-java/wiki/CVE-2026-58062"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Amber",
      "type": "CVSS_V4"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.

Action not permitted

CVE-2026-58062 (GCVE-0-2026-58062)

GHSA-J295-77C3-9FRF

Tags

Sightings

Nomenclature