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Vulnerability record · CVE-2022-32206 · published 7 July 2022

CVE-2022-32206: Haxx curl allocation without limits vulnerability

Haxx · Curl

curl < 7.84.0 supports "chained" HTTP compression algorithms, meaning that a serverresponse can be compressed multiple times and potentially with different algorithms. The number of acceptable "links" in this "decompression chain" was unbounded, allowing a malicious server to insert a virtually unlimited number of compression steps.The use of such a decompression chain could result in a "malloc bomb", makingcurl end up spending enormous amounts of allocated heap memory, or trying toand returning out of memory errors.

6.5 CVSS 3.1 Medium EPSS 33% · top 1.7% CWE-770 · Allocation without limits
6.5CVSS 3.1 base score, v2 4.3
33%EPSS exploitation probability, 30 days
NoNot in CISA KEV
19Affected product versions listed by NVD
22References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

curl < 7.84.0 supports "chained" HTTP compression algorithms, meaning that a serverresponse can be compressed multiple times and potentially with different algorithms. The number of acceptable "links" in this "decompression chain" was unbounded, allowing a malicious server to insert a virtually unlimited number of compression steps.The use of such a decompression chain could result in a "malloc bomb", makingcurl end up spending enormous amounts of allocated heap memory, or trying toand returning out of memory errors.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected products

19 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://seclists.org/fulldisclosure/2022/Oct/28 Mailing ListThird Party Advisory
http://seclists.org/fulldisclosure/2022/Oct/41 Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2023/02/15/3 Mailing ListThird Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-333517.pdf PatchThird Party Advisory
https://hackerone.com/reports/1570651 ExploitThird Party Advisory
https://lists.debian.org/debian-lts-announce/2022/08/msg00017.html Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BEV6BR4MTI3CEWK2YU2HQZU Mailing ListThird Party Advisory
https://security.gentoo.org/glsa/202212-01 Third Party Advisory
https://security.netapp.com/advisory/ntap-20220915-0003/ Third Party Advisory
https://support.apple.com/kb/HT213488 Third Party Advisory
https://www.debian.org/security/2022/dsa-5197 Third Party Advisory
http://seclists.org/fulldisclosure/2022/Oct/28 Mailing ListThird Party Advisory
http://seclists.org/fulldisclosure/2022/Oct/41 Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2023/02/15/3 Mailing ListThird Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-333517.pdf PatchThird Party Advisory
https://hackerone.com/reports/1570651 ExploitThird Party Advisory
https://lists.debian.org/debian-lts-announce/2022/08/msg00017.html Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BEV6BR4MTI3CEWK2YU2HQZU Mailing ListThird Party Advisory
https://security.gentoo.org/glsa/202212-01 Third Party Advisory
https://security.netapp.com/advisory/ntap-20220915-0003/ Third Party Advisory
https://support.apple.com/kb/HT213488 Third Party Advisory
https://www.debian.org/security/2022/dsa-5197 Third Party Advisory

Track CVE-2022-32206 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2022-32206), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.