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-2024-2398

CVE-2024-2398HIGH

curl curl — HTTP/2 push headers memory-leak

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   N   N  U  H  L  L    8.6   .3608   98.5     —

AFFECTED
  Product  Versions  Fixed
  curl     8.6.0 –   —

TIMELINE
  Mar 12  Reserved by curl
  Mar 27  Published (CNA: curl)
  Oct 15  EXPLOIT PUBLISHED — CVE-2024-2398 (curl). Public exploit reference added.

CWE-772 · CNA: curl · CVSS v3.1 · 16 references · NVD status: Modified

Description

When an application tells libcurl it wants to allow HTTP/2 server push, and the amount of received headers for the push surpasses the maximum allowed limit (1000), libcurl aborts the server push. When aborting, libcurl inadvertently does not free all the previously allocated headers and instead leaks the memory. Further, this error condition fails silently and is therefore not easily detected by an application.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
March 12, 2024	Reserved	Reserved by curl
March 27, 2024	Published	Published (CNA: curl)
October 15, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2024-2398 (curl). Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
curl	curl	—	8.6.0	—

Weaknesses

CWE-772

References (16)

http://seclists.org/fulldisclosure/2024/Jul/18 [Mailing List, Third Party Advisory]
http://seclists.org/fulldisclosure/2024/Jul/19 [Mailing List, Third Party Advisory]
http://seclists.org/fulldisclosure/2024/Jul/20 [Mailing List, Third Party Advisory]
http://www.openwall.com/lists/oss-security/2024/03/27/3 [Mailing List, Third Party Advisory]
https://cert-portal.siemens.com/productcert/html/ssa-331112.html
https://cert-portal.siemens.com/productcert/html/ssa-398330.html
https://cert-portal.siemens.com/productcert/html/ssa-417159.html
https://curl.se/docs/CVE-2024-2398.html [Vendor Advisory]
https://curl.se/docs/CVE-2024-2398.json [Vendor Advisory]
https://hackerone.com/reports/2402845 [Exploit, Issue Tracking, Third Party Advisory]
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2D44YLAUFJU6BZ4XFG2FYV7SBKXB5IZ6/ [Third Party Advisory]
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GMD6UYKCCRCYETWQZUJ65ZRFULT6SHLI/ [Third Party Advisory]
https://security.netapp.com/advisory/ntap-20240503-0009/ [Third Party Advisory]
https://support.apple.com/kb/HT214118 [Release Notes, Vendor Advisory]
https://support.apple.com/kb/HT214119 [Release Notes, Vendor Advisory]
https://support.apple.com/kb/HT214120 [Release Notes, Vendor Advisory]

Authoritative record: CVE-2024-2398 at cve.org

Vendors: curl

Weaknesses: CWE-772

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2024-2398 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.