Vulnerability-Lookup

GHSA-4MWX-9CGQ-H2WP

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

Details

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).

Severity

8.7 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-58059"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-407"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-03T03:16:45Z",
    "severity": "HIGH"
  },
  "details": "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).",
  "id": "GHSA-4mwx-9cgq-h2wp",
  "modified": "2026-08-03T09:32:36Z",
  "published": "2026-08-03T03:31:57Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-58059"
    },
    {
      "type": "WEB",
      "url": "https://github.com/bcgit/bc-java/commit/7bf20eea8c1b71a4d3574b75ba20ccf26ffff36b"
    },
    {
      "type": "WEB",
      "url": "https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902026%E2%80%9058059"
    },
    {
      "type": "WEB",
      "url": "https://github.com/bcgit/bc-java/wiki/CVE-2026-58059"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/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"
    }
  ]
}

CVE-2026-58059 (GCVE-0-2026-58059)

Vulnerability from cvelistv5 – Published: 2026-08-03 02:41 – Updated: 2026-08-03 15:32

Title

Quadratic-time escaping when stringifying X.500 distinguished names

Summary

Severity

8.7 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-407 - Inefficient Algorithmic Complexity

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/7bf20eea8…	patch

Impacted products

3 products

Vendor	Product	Version
Legion of the Bouncy Castle Inc.	BC-JAVA	Affected: 0 , < 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: 1.0.0 , < 1.0.2.7 (maven) 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

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JSON

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                "id": "CVE-2026-58059",
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                  },
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                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-03T15:32:14.380599Z",
                "version": "2.0.3"
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          "packageName": "bcprov",
          "packageURL": "pkg:maven/org.bouncycastle/bcprov-jdk18on",
          "platforms": [
            "all"
          ],
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          "programFiles": [
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          ],
          "repo": "https://github.com/bcgit/bc-java",
          "vendor": "Legion of the Bouncy Castle Inc.",
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              "status": "affected",
              "version": "0",
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          "defaultStatus": "unaffected",
          "modules": [
            "core"
          ],
          "packageName": "bcprov-lts8on",
          "packageURL": "pkg:maven/org.bouncycastle/bcprov-lts8on",
          "platforms": [
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          ],
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          "vendor": "Legion of the Bouncy Castle Inc.",
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        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
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            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 8.7,
            "baseSeverity": "HIGH",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "AMBER",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
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            "vulnerabilityResponseEffort": "NOT_DEFINED"
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        },
        {
          "tags": [
            "patch"
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          "url": "https://github.com/bcgit/bc-java/commit/7bf20eea8c1b71a4d3574b75ba20ccf26ffff36b"
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      "title": "Quadratic-time escaping when stringifying X.500 distinguished names",
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    "datePublished": "2026-08-03T02:41:30.973Z",
    "dateReserved": "2026-06-28T01:21:46.334Z",
    "dateUpdated": "2026-08-03T15:32:46.729Z",
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}

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

GHSA-4MWX-9CGQ-H2WP

CVE-2026-58059 (GCVE-0-2026-58059)

Tags

Sightings

Nomenclature