CVE-2026-32726

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Source
https://cve.org/CVERecord?id=CVE-2026-32726
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-32726.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-32726
Aliases
  • GHSA-q5fm-fgvx-32jq
Downstream
Published
2026-03-31T17:01:24.882Z
Modified
2026-07-15T15:33:05.600638Z
Severity
  • 8.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
Summary
SciTokens C++: Sibling-Path Authorization Bypass
Details

SciTokens C++ is a minimal library for creating and using SciTokens from C or C++. Prior to version 1.4.1, scitokens-cpp is vulnerable to an authorization bypass in path-based scope validation. The enforcer used a simple string-prefix comparison when checking whether a requested resource path was covered by a token's authorized scope path. Because the check did not require a path-segment boundary, a token scoped to one path could incorrectly authorize access to sibling paths that merely started with the same prefix. This issue has been patched in version 1.4.1.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32726.json",
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-863"
    ]
}
References

Affected packages

Git / github.com/scitokens/scitokens-cpp

Affected ranges

Type
GIT
Repo
https://github.com/scitokens/scitokens-cpp
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
fffcab6b9a80105a671ac039772ba81efe73e7e3
Fixed
decfe2f00cb9cabbf1e17a3bb2cd4ea1bbbd8a73
Database specific 
{
    "cpe": "cpe:2.3:a:scitokens:scitokens_cpp_library:*:*:*:*:*:*:*:*",
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.4.1"
        }
    ]
}

Affected versions

Other
v
v.*
v.1.3.0-rc0
v0.*
v0.1.0
v0.2.0
v0.3.0
v0.3.1
v0.3.2
v0.3.3
v0.3.4
v0.3.5
v0.5.0
v0.5.1
v0.6.0
v0.6.1
v0.6.2
v0.6.3
v0.7.0
v0.7.1
v1.*
v1.0.2
v1.1.0
v1.1.1
v1.1.2
v1.1.3
v1.2.0
v1.3.0
v1.4.0

Database specific

vanir_signatures 
[
    {
        "digest": {
            "length": 1996.0,
            "function_hash": "199255941784994433658960910835247042104"
        },
        "signature_version": "v1",
        "source": "https://github.com/scitokens/scitokens-cpp/commit/decfe2f00cb9cabbf1e17a3bb2cd4ea1bbbd8a73",
        "signature_type": "Function",
        "target": {
            "function": "scitokens::Enforcer::scope_validator",
            "file": "src/scitokens_internal.cpp"
        },
        "id": "CVE-2026-32726-0dc5a5fe",
        "deprecated": false
    },
    {
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "159840430630744419591112839117703905753",
                "17683542669161695574058019329274764265",
                "179126307303383970185612483052123876233"
            ]
        },
        "signature_version": "v1",
        "source": "https://github.com/scitokens/scitokens-cpp/commit/decfe2f00cb9cabbf1e17a3bb2cd4ea1bbbd8a73",
        "signature_type": "Line",
        "target": {
            "file": "test/main.cpp"
        },
        "id": "CVE-2026-32726-32fde545",
        "deprecated": false
    },
    {
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "91588322417046594382890747530733346783",
                "178361530478398450182763066002614390819",
                "161061523136490460615867101335340830643",
                "177456090769679396083828517545301403899",
                "118320184694229658000735575202242796721",
                "230763284223317003336134201537618144179",
                "140839150610333632117217197288039850646",
                "137095577354865888529134534202039451812",
                "236360911127192520963556170656676961283",
                "179688065208993355239342634598302126064",
                "250728064836209624798007172860113717581"
            ]
        },
        "signature_version": "v1",
        "source": "https://github.com/scitokens/scitokens-cpp/commit/decfe2f00cb9cabbf1e17a3bb2cd4ea1bbbd8a73",
        "signature_type": "Line",
        "target": {
            "file": "src/scitokens_internal.cpp"
        },
        "id": "CVE-2026-32726-e4b61cfa",
        "deprecated": false
    }
]
vanir_signatures_modified 
"2026-07-15T15:33:05Z"
source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-32726.json"