How severe is CVE-2025-14524?

CVE-2025-14524 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2025-14524 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-14524?

CVE-2025-14524 affects Haxx Curl. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-14524?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-14524 have an EU (EUVD) identifier?

Yes. CVE-2025-14524 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-1582.

When was CVE-2025-14524 published?

CVE-2025-14524 was published on 2026-01-08 and last updated on 2026-06-17.

CVE-2025-14524

CVE-2025-14524 is a medium-severity vulnerability in Haxx Curl with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-601.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 1% (45th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-1582
Weakness: CWE-601
Affected product: Haxx Curl
Published: 2026-01-08
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2025-14524?: 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.
How severe is CVE-2025-14524?: CVE-2025-14524 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2025-14524 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-14524?: CVE-2025-14524 affects Haxx Curl. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-14524?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-14524 have an EU (EUVD) identifier?: Yes. CVE-2025-14524 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-1582.
When was CVE-2025-14524 published?: CVE-2025-14524 was published on 2026-01-08 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*

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