Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2022-32206

CVE-2022-32206MEDIUM

n/a https://github.com/curl/curl — curl < 7.84.0 supports "chained" HTTP compression algorithms, meaning that a serverresponse can be compressed multiple times and potentia…

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   N   R  U  N  N  H    6.5   .3635   98.5     —

AFFECTED
  Product                       Versions           Fixed
  https://github.com/curl/curl  Fixed in 7.84.0 –  —

TIMELINE
  Jun 1   Reserved by hackerone
  Jul 7   Published (CNA: hackerone)
  Oct 14  EXPLOIT PUBLISHED — CVE-2022-32206 (https://github.com/curl/curl). Public exploit reference added.

CWE-770 · CNA: hackerone · CVSS v3.1 · 16 references · NVD status: Modified

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
June 1, 2022	Reserved	Reserved by hackerone
July 7, 2022	Published	Published (CNA: hackerone)
October 14, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2022-32206 (https://github.com/curl/curl). Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
n/a	https://github.com/curl/curl	—	Fixed in 7.84.0	—

Weaknesses

CWE-770

References (16)

http://seclists.org/fulldisclosure/2022/Oct/28 [Mailing List, Third Party Advisory]
http://seclists.org/fulldisclosure/2022/Oct/41 [Mailing List, Third Party Advisory]
http://www.openwall.com/lists/oss-security/2023/02/15/3 [Mailing List, Third Party Advisory]
https://cert-portal.siemens.com/productcert/html/ssa-333517.html
https://cert-portal.siemens.com/productcert/html/ssa-398330.html
https://cert-portal.siemens.com/productcert/html/ssa-419740.html
https://cert-portal.siemens.com/productcert/html/ssa-558014.html
https://cert-portal.siemens.com/productcert/html/ssa-942865.html
https://cert-portal.siemens.com/productcert/pdf/ssa-333517.pdf [Patch, Third Party Advisory]
https://hackerone.com/reports/1570651 [Exploit, Third Party Advisory]
https://lists.debian.org/debian-lts-announce/2022/08/msg00017.html [Mailing List, Third Party Advisory]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BEV6BR4MTI3CEWK2YU2HQZUW5FAS3FEY/ [Mailing List, Third 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]

Authoritative record: CVE-2022-32206 at cve.org

Weaknesses: CWE-770

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2022-32206 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.