CVE-2026-59645

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Source
https://cve.org/CVERecord?id=CVE-2026-59645
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-59645.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-59645
Downstream
CLEANSTART (14)
DEBIAN (1)
openSUSE (2)
SUSE (3)
UBUNTU (1)
Related
openSUSE (2)
SUSE (3)
Published
2026-08-03T00:49:41Z
Modified
2026-10-16T09:59:43Z
Severity
  • 8.7 (High) CVSS_V4 - 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 CVSS Calculator
Summary
OER parser recurses without depth limit on self-referential IEEE 1609.2 schema
Details

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).

Database specific 
{
    "cna_assigner":  "bcorg",
    "cwe_ids":  [
        "CWE-674"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59645.json",
    "unresolved_ranges":  [
        {
            "extracted_events":  [
                {
                    "range":  [
                        {
                            "introduced":  "2.0.0"
                        },
                        {
                            "fixed":  "2.0.7"
                        },
                        {
                            "introduced":  "2.1.0"
                        },
                        {
                            "fixed":  "2.1.7"
                        }
                    ],
                    "source":  "AFFECTED_FIELD",
                    "strategy":  "StandardRange"
                }
            ]
        }
    ]
}
References

Affected packages

Git / github.com/bcgit/bc-java

Affected ranges

Type
GIT
Repo
https://github.com/bcgit/bc-java
Events
Introduced
1ef1da015e116c1c2d09719674dfdd437971077f
Fixed
57fbd3c501f7a369f64eda311d6a709fc0bcae84
Fixed
822b2478b131097368a56290f5728e28dd042989
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "1.70"
                },
                {
                    "fixed":  "1.85"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StandardRange"
        },
        {
            "range":  [
                {
                    "fixed":  "822b2478b131097368a56290f5728e28dd042989"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        }
    ]
}
Type
GIT
Repo
https://github.com/bcgit/bc-lts-java
Events
Introduced
468b5082f3f0971e80bf9edb7029c17b39b9ba0c
Fixed
f101b232c5d3e07ecdd504210a57e43831d6cd65
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "2.73.0"
                },
                {
                    "fixed":  "2.73.12"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StandardRange"
        },
        {
            "cpe":  "cpe:2.3:a:bouncycastle:bouncy_castle_for_java_lts:*:*:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "last_affected":  "2.73.11"
                }
            ],
            "source":  "CPE_RANGE"
        }
    ]
}

Affected versions

Other
r2rv73dot0
r2rv73dot1
r2rv73dot10
r2rv73dot11
r2rv73dot3
r2rv73dot4
r2rv73dot6
r2rv73dot8
r2rv73dot9

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-59645.json"
vanir_signatures 
[
    {
        "deprecated":  false,
        "digest":  {
            "function_hash":  "61936957452251868043795347011950388770",
            "length":  194
        },
        "id":  "CVE-2026-59645-480cd609",
        "signature_type":  "Function",
        "signature_version":  "v1",
        "source":  "https://github.com/bcgit/bc-java/commit/822b2478b131097368a56290f5728e28dd042989",
        "target":  {
            "file":  "util/src/test/java/org/bouncycastle/oer/test/AllTests.java",
            "function":  "suite"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
            "line_hashes":  [
                "126596299296551308706069173584671460594",
                "155076172052863575117192343166341235009",
                "21836474561459979390668704730975039201",
                "197623880350845315046584744138405013559",
                "146625228997615351644760173160344521923",
                "136251056313618512205121835712578705475",
                "231420547814360522088607496756397463404",
                "78199702252350390510963295229808185302",
                "189318316724631994981851886335945560901",
                "330979747661613284090515451343864728171",
                "62818674120174673211493461531171871837",
                "73168273366388733868076141176246148565",
                "301937890632115766460903127849709419957",
                "277113260795665366007155654937732960055",
                "146702891423135798157360235099291420437",
                "201153433670954445769645824934664358170",
                "115685587466320056377554019118170517486",
                "26937990677708113023436765806908363293",
                "95125908845527997869754958781802113489",
                "83418577537951949483446264076509504704",
                "194539196534964886070491898142929828505",
                "126124747591311759782218478905337563796",
                "83845875165784887020180875240669614037",
                "60030179346439282314043827242105660044",
                "134205829938269904774197535387926818073",
                "96574085834165875949643863414280446893",
                "169367590695605967319382912482154978214",
                "211428309378636244559928485805304368599",
                "176971805541668147916752765084889732044",
                "197988939767144981840775126193834364063",
                "35630994645827930408971053902471673599"
            ],
            "threshold":  0.9
        },
        "id":  "CVE-2026-59645-66a125b7",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://github.com/bcgit/bc-java/commit/822b2478b131097368a56290f5728e28dd042989",
        "target":  {
            "file":  "util/src/main/java/org/bouncycastle/oer/OERInputStream.java"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
            "function_hash":  "310239606002667000188460375082786833993",
            "length":  7863
        },
        "id":  "CVE-2026-59645-dbafdc92",
        "signature_type":  "Function",
        "signature_version":  "v1",
        "source":  "https://github.com/bcgit/bc-java/commit/822b2478b131097368a56290f5728e28dd042989",
        "target":  {
            "file":  "util/src/main/java/org/bouncycastle/oer/OERInputStream.java",
            "function":  "parse"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
            "function_hash":  "210001890843122775591667799759219882292",
            "length":  426
        },
        "id":  "CVE-2026-59645-ddc8eea0",
        "signature_type":  "Function",
        "signature_version":  "v1",
        "source":  "https://github.com/bcgit/bc-java/commit/822b2478b131097368a56290f5728e28dd042989",
        "target":  {
            "file":  "util/src/main/java/org/bouncycastle/oer/OERInputStream.java",
            "function":  "parseOpenType"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
            "line_hashes":  [
                "165766106122137720709208804080888710655",
                "272363690230161298269371274755244300394",
                "218816129600365152849701932294055365041",
                "166202449970218380888907502459593937682"
            ],
            "threshold":  0.9
        },
        "id":  "CVE-2026-59645-f0d1dc0f",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://github.com/bcgit/bc-java/commit/822b2478b131097368a56290f5728e28dd042989",
        "target":  {
            "file":  "util/src/test/java/org/bouncycastle/oer/test/AllTests.java"
        }
    }
]
vanir_signatures_modified 
"2026-10-16T09:59:43Z"