CVE records

Every CVE as the CVE Program publishes it, refreshed every ten minutes, with NVD's analysis, CISA's known-exploited status and a healthcare tag. Free accounts get a daily email of the CVEs that match up to 3 of their products on My program; subscribers get each one the moment it is published. Where the data comes from: sources.

Updated under an hour ago (Oct 29, 2026, 8:10 PM ET)

What this means for you

This week: 3,238 CVEs published, 236 critical, and 3 newly confirmed exploited. Add your stack to see whether any of them hit you.

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Start free and add your stackFree account, 3 products This week's critical CVEs Exploited in the last 30 days

Published in the last 7 days: 3,238; Show in the list
Critical, last 7 days: 236; Show in the list
Healthcare-tagged, last 7 days: 5; Show in the list
Known exploited (CISA KEV): 1,762; Show in the list

Showing CVEs that name the product haxx:libcurl. Show all products

14 CVEs

Showing 1 to 10.

CVE	Severity	Title	Published
CVE-2019-5436	High 7.8	A heap buffer overflow in the TFTP receiving code allows for DoS or arbitrary code execution in libcurl versions 7.19.4 through 7.64.1. Assigned by hackerone	May 28, 2019
CVE-2020-8285	High 7.5	curl 7.21.0 to and including 7.73.0 is vulnerable to uncontrolled recursion due to a stack overflow issue in FTP wildcard match parsing. Assigned by hackerone	Dec 14, 2020
CVE-2020-8231	High 7.5	Due to use of a dangling pointer, libcurl 7.29.0 through 7.71.1 can use the wrong connection when sending data. Assigned by hackerone	Dec 14, 2020
CVE-2020-8286	High 7.5	curl 7.41.0 through 7.73.0 is vulnerable to an improper check for certificate revocation due to insufficient verification of the OCSP response. Assigned by hackerone	Dec 14, 2020
CVE-2021-22876	Medium 5.3	curl 7.1.1 to and including 7.75.0 is vulnerable to an "Exposure of Private Personal Information to an Unauthorized Actor" by leaking credentials in the HTTP Referer: header. Assigned by hackerone	Apr 1, 2021
CVE-2021-22890	Medium 4.3	curl 7.63.0 to and including 7.75.0 includes vulnerability that allows a malicious HTTPS proxy to MITM a connection due to bad handling of TLS 1.3 session tickets. Assigned by hackerone	Apr 1, 2021
CVE-2021-22924	Low 3.7	libcurl keeps previously used connections in a connection pool for subsequenttransfers to reuse, if one of them matches the setup.Due to errors in the logic, the config matching function did not take… Assigned by hackerone	Aug 5, 2021
CVE-2021-22945	Critical 9.1	When sending data to an MQTT server, libcurl <= 7.73.0 and 7.78.0 could in some circumstances erroneously keep a pointer to an already freed memory area and both use that again in a subsequent call t… Assigned by hackerone	Sep 22, 2021
CVE-2023-27535	Medium 5.9	An authentication bypass vulnerability exists in libcurl <8.0.0 in the FTP connection reuse feature that can result in wrong credentials being used during subsequent transfers. Assigned by hackerone	Mar 29, 2023
CVE-2023-27537	Medium 5.9	A double free vulnerability exists in libcurl <8.0.0 when sharing HSTS data between separate "handles". Assigned by hackerone	Mar 29, 2023

CVSS is the assigning CNA's score where it gives one, otherwise NVD's. The healthcare tag is a documented heuristic (a list of clinical and health IT vendors, and clinical terms in the description), not a classification. The CVE record is authoritative.