Medium 5.3Published Jan 8, 2026

CVE-2025-14524When 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…

Updated under an hour ago (2026-10-19 10:20 UTC)

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It affects haxx curl. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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.

CVSS: 5.3 MEDIUM (v3.1, NVD)CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
Weakness (CWE): CWE-522, CWE-601
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Modified
Record last updated: Sep 15, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

haxx curl haxx:curl	from 7.33.0 before 8.18.0	NVD

References

https://curl.se/docs/CVE-2025-14524.htmlpatch, vendor-advisory
https://curl.se/docs/CVE-2025-14524.jsonvendor-advisory
https://hackerone.com/reports/3459417exploit, issue-tracking, third-party-advisory
http://www.openwall.com/lists/oss-security/2026/01/07/4mailing-list, patch, third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.