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CVE-2025-14524— bearer token leak on cross-protocol redirect

Quick assessment

Affected
curl curl
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

curl是cURL开源的一款用于从服务器传输数据或向服务器传输数据的工具。 curl存在安全漏洞，该漏洞源于OAuth2承载令牌在跨协议重定向时错误传递。

AI Predicted 6.7 Difficulty: Moderate EPSS 0.68% · P51

Possible ATT&CK Techniques 1 AI

T1539 · Steal Web Session Cookie

Affected Version Matrix 111

VendorProduct Version RangeStatus
curl curl 7.33.0< 8.14.2 affected
8.15.0< 8.16.1 affected
8.17.0< 8.18.0 affected
06c1bea72faabb6fad4b7ef818aafaa336c9a7aa< 1a822275d333dc6da6043497160fd04c8fa48640 affected
8.17.0 affected
8.16.0 affected
8.15.0 affected
8.14.1 affected
… +103 more rows
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I. Basic Information for CVE-2025-14524

Vulnerability Information
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Vulnerability Title
bearer token leak on cross-protocol redirect
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
不充分的凭证保护机制
Source: CVE Program / CVE List V5
Vulnerability Title
curl 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
curl是cURL开源的一款用于从服务器传输数据或向服务器传输数据的工具。 curl存在安全漏洞，该漏洞源于OAuth2承载令牌在跨协议重定向时错误传递。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
curl curl 7.33.0 ~ 8.14.2 -
curl curl 06c1bea72faabb6fad4b7ef818aafaa336c9a7aa ~ 1a822275d333dc6da6043497160fd04c8fa48640 -
curl curl 8.17.0 -

II. Public POCs for CVE-2025-14524

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III. Intelligence Information for CVE-2025-14524

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Other References for CVE-2025-14524 (3)

Same Patch Batch · curl · 2026-01-08 · 6 CVEs total

CVE-2025-15224 libssh key passphrase bypass without agent set
CVE-2025-15079 libssh global known_hosts override
CVE-2025-14819 OpenSSL partial chain store policy bypass
CVE-2025-14017 broken TLS options for threaded LDAPS
CVE-2025-13034 No QUIC certificate pinning with GnuTLS

IV. Related Vulnerabilities

Same product: curl
Same vendor: curl
Same weakness: CWE-522

V. Comments for CVE-2025-14524

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