Vulnerability in Haxx Curl

CVE-2023-23914

A cleartext transmission of sensitive information vulnerability exists in curl <v7.88.0 that could cause HSTS functionality fail when multiple URLs are requested serially. Using its HSTS support, curl can be instructed to use HTTPS instead…

EPSS: 0.009 (54.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2023-23914?
CVE-2023-23914 is a critical-severity vulnerability in Haxx Curl, classified under Cleartext Transmission of Sensitive Information. CVSS score: 9.1/10. Published 2023-02-23.
How severe is CVE-2023-23914?
Critical severity. CVSS v3 base score is 9.1 out of 10.
Is CVE-2023-23914 known to be exploited?
10 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.