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CVE-2026-9079

critical CVSS 9.8 EPSS 0.6%

libcurl had a flaw that when instructed to clear proxy authentication credentials which made it not do so, leaving the old credentials around to get used for subsequent transfers that should not know nor use them.

Versions it affects

Software versions checked with the free lookup that CVE-2026-9079 applies to, and the release that fixes it where the sources name one.

curl 8.1.2 fixed in 8.14.2

At a glance

Severity
Critical
CVSS base score
9.8 out of 10
Known exploited
Not in CISA's catalogue of exploited vulnerabilities
EPSS
0.6% probability of exploitation in the next 30 days, higher than 46% of scored vulnerabilities
Weakness
CWE-522
Published
2026-07-03
NVD CVE.org

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