bearer token leak on cross-protocol redirect_CVE-2025-14524

5.3 / 10

MEDIUM

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N

Description

When an OAuth2 bearer token is used for an HTTP(S) transfer, and that transfer
performs a cross-protocol redirect to a second URL that uses an IMAP, LDAP,
POP3 or SMTP scheme, curl might wrongly pass on the bearer token to the new
target host.

Basic Information

ID CVE-2025-14524

Source curl

Published Jan 8, 2026 at 10:07

Modified Jan 9, 2026 at 19:25

Affected Product

Vendor curl

Product curl

Version 8.17.0

Affected Versions curl curl 8.17.0
curl curl 8.16.0
curl curl 8.15.0
curl curl 8.14.1
curl curl 8.14.0
curl curl 8.13.0
curl curl 8.12.1
curl curl 8.12.0
curl curl 8.11.1
curl curl 8.11.0
curl curl 8.10.1
curl curl 8.10.0
curl curl 8.9.1
curl curl 8.9.0
curl curl 8.8.0
curl curl 8.7.1
curl curl 8.7.0
curl curl 8.6.0
curl curl 8.5.0
curl curl 8.4.0
curl curl 8.3.0
curl curl 8.2.1
curl curl 8.2.0
curl curl 8.1.2
curl curl 8.1.1
curl curl 8.1.0
curl curl 8.0.1
curl curl 8.0.0
curl curl 7.88.1
curl curl 7.88.0
curl curl 7.87.0
curl curl 7.86.0
curl curl 7.85.0
curl curl 7.84.0
curl curl 7.83.1
curl curl 7.83.0
curl curl 7.82.0
curl curl 7.81.0
curl curl 7.80.0
curl curl 7.79.1
curl curl 7.79.0
curl curl 7.78.0
curl curl 7.77.0
curl curl 7.76.1
curl curl 7.76.0
curl curl 7.75.0
curl curl 7.74.0
curl curl 7.73.0
curl curl 7.72.0
curl curl 7.71.1
curl curl 7.71.0
curl curl 7.70.0
curl curl 7.69.1
curl curl 7.69.0
curl curl 7.68.0
curl curl 7.67.0
curl curl 7.66.0
curl curl 7.65.3
curl curl 7.65.2
curl curl 7.65.1
curl curl 7.65.0
curl curl 7.64.1
curl curl 7.64.0
curl curl 7.63.0
curl curl 7.62.0
curl curl 7.61.1
curl curl 7.61.0
curl curl 7.60.0
curl curl 7.59.0
curl curl 7.58.0
curl curl 7.57.0
curl curl 7.56.1
curl curl 7.56.0
curl curl 7.55.1
curl curl 7.55.0
curl curl 7.54.1
curl curl 7.54.0
curl curl 7.53.1
curl curl 7.53.0
curl curl 7.52.1
curl curl 7.52.0
curl curl 7.51.0
curl curl 7.50.3
curl curl 7.50.2
curl curl 7.50.1
curl curl 7.50.0
curl curl 7.49.1
curl curl 7.49.0
curl curl 7.48.0
curl curl 7.47.1
curl curl 7.47.0
curl curl 7.46.0
curl curl 7.45.0
curl curl 7.44.0
curl curl 7.43.0
curl curl 7.42.1
curl curl 7.42.0
curl curl 7.41.0
curl curl 7.40.0
curl curl 7.39.0
curl curl 7.38.0
curl curl 7.37.1
curl curl 7.37.0
curl curl 7.36.0
curl curl 7.35.0
curl curl 7.34.0
curl curl 7.33.0

References

{
    "lastseen": "",
    "description": "When an OAuth2 bearer token is used for an HTTP(S) transfer, and that transfer\nperforms a cross-protocol redirect to a second URL that uses an IMAP, LDAP,\nPOP3 or SMTP scheme, curl might wrongly pass on the bearer token to the new\ntarget host.",
    "published": "2026-01-08T10:07:25.655Z",
    "modified": "2026-01-09T19:25:30.460Z",
    "type": "cve",
    "title": "bearer token leak on cross-protocol redirect",
    "source": "curl",
    "references": "https://curl.se/docs/CVE-2025-14524.json\nhttps://curl.se/docs/CVE-2025-14524.html\nhttps://hackerone.com/reports/3459417",
    "id": "CVE-2025-14524",
    "bulletinFamily": "",
    "cwe": null,
    "cvelist": null,
    "sourceData": "curl curl 8.17.0\ncurl curl 8.16.0\ncurl curl 8.15.0\ncurl curl 8.14.1\ncurl curl 8.14.0\ncurl curl 8.13.0\ncurl curl 8.12.1\ncurl curl 8.12.0\ncurl curl 8.11.1\ncurl curl 8.11.0\ncurl curl 8.10.1\ncurl curl 8.10.0\ncurl curl 8.9.1\ncurl curl 8.9.0\ncurl curl 8.8.0\ncurl curl 8.7.1\ncurl curl 8.7.0\ncurl curl 8.6.0\ncurl curl 8.5.0\ncurl curl 8.4.0\ncurl curl 8.3.0\ncurl curl 8.2.1\ncurl curl 8.2.0\ncurl curl 8.1.2\ncurl curl 8.1.1\ncurl curl 8.1.0\ncurl curl 8.0.1\ncurl curl 8.0.0\ncurl curl 7.88.1\ncurl curl 7.88.0\ncurl curl 7.87.0\ncurl curl 7.86.0\ncurl curl 7.85.0\ncurl curl 7.84.0\ncurl curl 7.83.1\ncurl curl 7.83.0\ncurl curl 7.82.0\ncurl curl 7.81.0\ncurl curl 7.80.0\ncurl curl 7.79.1\ncurl curl 7.79.0\ncurl curl 7.78.0\ncurl curl 7.77.0\ncurl curl 7.76.1\ncurl curl 7.76.0\ncurl curl 7.75.0\ncurl curl 7.74.0\ncurl curl 7.73.0\ncurl curl 7.72.0\ncurl curl 7.71.1\ncurl curl 7.71.0\ncurl curl 7.70.0\ncurl curl 7.69.1\ncurl curl 7.69.0\ncurl curl 7.68.0\ncurl curl 7.67.0\ncurl curl 7.66.0\ncurl curl 7.65.3\ncurl curl 7.65.2\ncurl curl 7.65.1\ncurl curl 7.65.0\ncurl curl 7.64.1\ncurl curl 7.64.0\ncurl curl 7.63.0\ncurl curl 7.62.0\ncurl curl 7.61.1\ncurl curl 7.61.0\ncurl curl 7.60.0\ncurl curl 7.59.0\ncurl curl 7.58.0\ncurl curl 7.57.0\ncurl curl 7.56.1\ncurl curl 7.56.0\ncurl curl 7.55.1\ncurl curl 7.55.0\ncurl curl 7.54.1\ncurl curl 7.54.0\ncurl curl 7.53.1\ncurl curl 7.53.0\ncurl curl 7.52.1\ncurl curl 7.52.0\ncurl curl 7.51.0\ncurl curl 7.50.3\ncurl curl 7.50.2\ncurl curl 7.50.1\ncurl curl 7.50.0\ncurl curl 7.49.1\ncurl curl 7.49.0\ncurl curl 7.48.0\ncurl curl 7.47.1\ncurl curl 7.47.0\ncurl curl 7.46.0\ncurl curl 7.45.0\ncurl curl 7.44.0\ncurl curl 7.43.0\ncurl curl 7.42.1\ncurl curl 7.42.0\ncurl curl 7.41.0\ncurl curl 7.40.0\ncurl curl 7.39.0\ncurl curl 7.38.0\ncurl curl 7.37.1\ncurl curl 7.37.0\ncurl curl 7.36.0\ncurl curl 7.35.0\ncurl curl 7.34.0\ncurl curl 7.33.0",
    "sourceHref": "",
    "cvss": {
        "score": 5.3,
        "severity": "MEDIUM",
        "vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "curl",
    "version": "8.17.0",
    "vendor": "curl",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}

Description

Basic Information

Affected Product

References

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