HTTP/2 push headers memory-leak
Priority HIGH 69CWE-772Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- High · Low · Low
- Fix status
- Partial Red Hat: 10 fixed, 3 without a fix
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-772.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.36081 98th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial Red Hat: 9 advisoriesRed Hat: 10 fixed, 3 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| curl | curl | 8.6.0 – 8.6.0; 8.5.0 – 8.5.0; 8.4.0 – 8.4.0; 8.3.0 – 8.3.0; 8.2.1 – 8.2.1; 8.2.0 – 8.2.0; 8.1.2 – 8.1.2; 8.1.1 – 8.1.1; 8.1.0 – 8.1.0; 8.0.1 – 8.0.1; 8.0.0 – 8.0.0; 7.88.1 – 7.88.1; 7.88.0 – 7.88.0; 7.87.0 – 7.87.0; 7.86.0 – 7.86.0; 7.85.0 – 7.85.0; 7.84.0 – 7.84.0; 7.83.1 – 7.83.1; 7.83.0 – 7.83.0; 7.82.0 – 7.82.0; 7.81.0 – 7.81.0; 7.80.0 – 7.80.0; 7.79.1 – 7.79.1; 7.79.0 – 7.79.0; 7.78.0 – 7.78.0; 7.77.0 – 7.77.0; 7.76.1 – 7.76.1; 7.76.0 – 7.76.0; 7.75.0 – 7.75.0; 7.74.0 – 7.74.0; 7.73.0 – 7.73.0; 7.72.0 – 7.72.0; 7.71.1 – 7.71.1; 7.71.0 – 7.71.0; 7.70.0 – 7.70.0; 7.69.1 – 7.69.1; 7.69.0 – 7.69.0; 7.68.0 – 7.68.0; 7.67.0 – 7.67.0; 7.66.0 – 7.66.0; 7.65.3 – 7.65.3; 7.65.2 – 7.65.2; 7.65.1 – 7.65.1; 7.65.0 – 7.65.0; 7.64.1 – 7.64.1; 7.64.0 – 7.64.0; 7.63.0 – 7.63.0; 7.62.0 – 7.62.0; 7.61.1 – 7.61.1; 7.61.0 – 7.61.0; 7.60.0 – 7.60.0; 7.59.0 – 7.59.0; 7.58.0 – 7.58.0; 7.57.0 – 7.57.0; 7.56.1 – 7.56.1; 7.56.0 – 7.56.0; 7.55.1 – 7.55.1; 7.55.0 – 7.55.0; 7.54.1 – 7.54.1; 7.54.0 – 7.54.0; 7.53.1 – 7.53.1; 7.53.0 – 7.53.0; 7.52.1 – 7.52.1; 7.52.0 – 7.52.0; 7.51.0 – 7.51.0; 7.50.3 – 7.50.3; 7.50.2 – 7.50.2; 7.50.1 – 7.50.1; 7.50.0 – 7.50.0; 7.49.1 – 7.49.1; 7.49.0 – 7.49.0; 7.48.0 – 7.48.0; 7.47.1 – 7.47.1; 7.47.0 – 7.47.0; 7.46.0 – 7.46.0; 7.45.0 – 7.45.0; 7.44.0 – 7.44.0 | — | No fix listed | CNA |
- curl Vendorcurl Affected 8.6.0 – 8.6.0; 8.5.0 – 8.5.0; 8.4.0 – 8.4.0; 8.3.0 – 8.3.0; 8.2.1 – 8.2.1; 8.2.0 – 8.2.0; 8.1.2 – 8.1.2; 8.1.1 – 8.1.1; 8.1.0 – 8.1.0; 8.0.1 – 8.0.1; 8.0.0 – 8.0.0; 7.88.1 – 7.88.1; 7.88.0 – 7.88.0; 7.87.0 – 7.87.0; 7.86.0 – 7.86.0; 7.85.0 – 7.85.0; 7.84.0 – 7.84.0; 7.83.1 – 7.83.1; 7.83.0 – 7.83.0; 7.82.0 – 7.82.0; 7.81.0 – 7.81.0; 7.80.0 – 7.80.0; 7.79.1 – 7.79.1; 7.79.0 – 7.79.0; 7.78.0 – 7.78.0; 7.77.0 – 7.77.0; 7.76.1 – 7.76.1; 7.76.0 – 7.76.0; 7.75.0 – 7.75.0; 7.74.0 – 7.74.0; 7.73.0 – 7.73.0; 7.72.0 – 7.72.0; 7.71.1 – 7.71.1; 7.71.0 – 7.71.0; 7.70.0 – 7.70.0; 7.69.1 – 7.69.1; 7.69.0 – 7.69.0; 7.68.0 – 7.68.0; 7.67.0 – 7.67.0; 7.66.0 – 7.66.0; 7.65.3 – 7.65.3; 7.65.2 – 7.65.2; 7.65.1 – 7.65.1; 7.65.0 – 7.65.0; 7.64.1 – 7.64.1; 7.64.0 – 7.64.0; 7.63.0 – 7.63.0; 7.62.0 – 7.62.0; 7.61.1 – 7.61.1; 7.61.0 – 7.61.0; 7.60.0 – 7.60.0; 7.59.0 – 7.59.0; 7.58.0 – 7.58.0; 7.57.0 – 7.57.0; 7.56.1 – 7.56.1; 7.56.0 – 7.56.0; 7.55.1 – 7.55.1; 7.55.0 – 7.55.0; 7.54.1 – 7.54.1; 7.54.0 – 7.54.0; 7.53.1 – 7.53.1; 7.53.0 – 7.53.0; 7.52.1 – 7.52.1; 7.52.0 – 7.52.0; 7.51.0 – 7.51.0; 7.50.3 – 7.50.3; 7.50.2 – 7.50.2; 7.50.1 – 7.50.1; 7.50.0 – 7.50.0; 7.49.1 – 7.49.1; 7.49.0 – 7.49.0; 7.48.0 – 7.48.0; 7.47.1 – 7.47.1; 7.47.0 – 7.47.0; 7.46.0 – 7.46.0; 7.45.0 – 7.45.0; 7.44.0 – 7.44.0 Fixed in — No fix listed CNA
CPE configurations NVD · 23
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:* | 7.44.0 to before 8.7.0 | Vulnerable | Haxx |
| cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* | before 12.7.6; 13.0 to before 13.6.8; 14.0 to before 14.6 | Vulnerable | Apple |
| cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:* | 39 | Vulnerable | Fedoraproject |
| cpe:2.3:o:fedoraproject:fedora:40:*:*:*:*:*:*:* | 40 | Vulnerable | Fedoraproject |
| cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:o:netapp:brocade_fabric_operating_system:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:o:netapp:bootstrap_os:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:h:netapp:hci_compute_node:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NetApp |
| cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
- cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:* Versions 7.44.0 to before 8.7.0 Vulnerable ·Haxx
- cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* Versions before 12.7.6; 13.0 to before 13.6.8; 14.0 to before 14.6 Vulnerable ·Apple
- cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:* Versions 39 Vulnerable ·Fedoraproject
- cpe:2.3:o:fedoraproject:fedora:40:*:*:*:*:*:*:* Versions 40 Vulnerable ·Fedoraproject
- cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:o:netapp:brocade_fabric_operating_system:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:o:netapp:bootstrap_os:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:h:netapp:hci_compute_node:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
- cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
Show 13 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NetApp |
| cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NetApp |
| cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NetApp |
| cpe:2.3:o:netapp:h610c_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:h:netapp:h610c:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NetApp |
| cpe:2.3:o:netapp:h610s_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:h:netapp:h610s:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NetApp |
| cpe:2.3:o:netapp:h615c_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:h:netapp:h615c:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NetApp |
| cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NetApp |
- cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
- cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
- cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
- cpe:2.3:o:netapp:h610c_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:h:netapp:h610c:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
- cpe:2.3:o:netapp:h610s_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:h:netapp:h610s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
- cpe:2.3:o:netapp:h615c_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:h:netapp:h615c:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
- cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
Remediation
Red Hat 9 advisories
- RHSA-2024:11109 Released 2024-12-16 · Red Hat rating LowUpdated service-interconnect rhel9 container images for 1.5
- Red Hat Service Interconnect 1 service-interconnect/skupper-config-sync-rhel9, service-interconnect/skupper-controller-podman-container-rhel9, service-interconnect/skupper-controller-podman-rhel9 +5
- RHSA-2024:10135 Released 2024-11-21 · Red Hat rating LowUpdated service-interconnect rhel9 container images for 1.4 LTS
- 9Base-Service-Interconnect-1.4 service-interconnect/skupper-config-sync-rhel9, service-interconnect/skupper-flow-collector-rhel9, service-interconnect/skupper-operator-bundle +3
- RHSA-2024:7374 Released 2024-09-30 · Red Hat rating LowSecurity update for service-interconnect rhel9 container images
- Red Hat Service Interconnect 1 service-interconnect/skupper-config-sync-rhel9, service-interconnect/skupper-controller-podman-container-rhel9, service-interconnect/skupper-controller-podman-rhel9 +5
Show 6 more Red Hat advisories
- RHSA-2024:7213 Released 2024-09-26 · Red Hat rating LowUpdated service-interconnect rhel9 container images for 1.4 LTS
- 9Base-Service-Interconnect-1.4 service-interconnect/skupper-config-sync-rhel9, service-interconnect/skupper-flow-collector-rhel9, service-interconnect/skupper-operator-bundle +3
- RHSA-2024:5654 Released 2024-08-20 · Red Hat rating Moderatecurl security update
- Red Hat Enterprise Linux BaseOS (v. 8) curl-7.61.1-34.el8_10.2, libcurl-7.61.1-34.el8_10.2, libcurl-devel-7.61.1-34.el8_10.2 +1
- RHSA-2024:5529 Released 2024-08-19 · Red Hat rating Moderatecurl security update
- Red Hat Enterprise Linux AppStream (v. 9) libcurl-devel-7.76.1-29.el9_4.1
- Red Hat Enterprise Linux BaseOS (v. 9) curl-7.76.1-29.el9_4.1, curl-minimal-7.76.1-29.el9_4.1, libcurl-7.76.1-29.el9_4.1 +1
- RHSA-2024:3998 Released 2024-06-20 · Red Hat rating Moderatecurl security update
- Red Hat Enterprise Linux AppStream EUS (v.9.2) libcurl-devel-7.76.1-23.el9_2.7
- Red Hat Enterprise Linux BaseOS EUS (v.9.2) curl-7.76.1-23.el9_2.7, curl-minimal-7.76.1-23.el9_2.7, libcurl-7.76.1-23.el9_2.7 +1
- RHSA-2024:2693 Released 2024-05-07 · Red Hat rating ModerateRed Hat JBoss Core Services Apache HTTP Server 2.4.57 SP4 security update
- Red Hat JBoss Core Services on RHEL 7 Server jbcs-httpd24-curl-8.7.1-2.el7jbcs, jbcs-httpd24-httpd-2.4.57-10.el7jbcs, jbcs-httpd24-httpd-devel-2.4.57-10.el7jbcs +17
- Red Hat JBoss Core Services on RHEL 8 jbcs-httpd24-curl-8.7.1-2.el8jbcs, jbcs-httpd24-httpd-2.4.57-10.el8jbcs, jbcs-httpd24-httpd-devel-2.4.57-10.el8jbcs +17
- RHSA-2024:2694 Released 2024-05-07 · Red Hat rating ModerateRed Hat JBoss Core Services Apache HTTP Server 2.4.57 SP4 security update
- Red Hat JBoss Core Services
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
| Red Hat Software Collections | Affected | No fix planned: Will not fix |
| 9Base-Service-Interconnect-1.4 | Fixed | RHSA-2024:10135, RHSA-2024:7213 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2024:5529 |
| Red Hat Enterprise Linux AppStream EUS (v.9.2) | Fixed | RHSA-2024:3998 |
| Red Hat Enterprise Linux BaseOS (v. 8) | Fixed | RHSA-2024:5654 |
| Red Hat Enterprise Linux BaseOS (v. 9) | Fixed | RHSA-2024:5529 |
| Red Hat Enterprise Linux BaseOS EUS (v.9.2) | Fixed | RHSA-2024:3998 |
| Red Hat JBoss Core Services | Fixed | RHSA-2024:2694 |
| Red Hat JBoss Core Services on RHEL 7 Server | Fixed | RHSA-2024:2693 |
| Red Hat JBoss Core Services on RHEL 8 | Fixed | RHSA-2024:2693 |
| Red Hat Service Interconnect 1 | Fixed | RHSA-2024:11109, RHSA-2024:7374 |
Not affected: 1 product
- Red Hat Enterprise Linux 10
Timeline
- 2026-10-02 Threatist record created from CVE-2024-2398
- 2026-10-03 Alias added: GHSA-mq8w-c2j9-rqxc
- 2026-10-09 Fix available: RHSA-2024:2694 · Red Hat
- 2026-10-16 Fix available: Red Hat JBoss Core Services · Red Hat
References
Exploit 1
Advisory 12
- json
- www
- https://lists.fedoraproject.org/archives/list/[email protected]/message/GMD6UYKCCRCYETWQZUJ65ZRFULT6SHLI/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/2D44YLAUFJU6BZ4XFG2FYV7SBKXB5IZ6/
- http://www.openwall.com/lists/oss-security/2024/03/27/3
- https://security.netapp.com/advisory/ntap-20240503-0009/
- https://support.apple.com/kb/HT214119
- https://support.apple.com/kb/HT214118
- https://support.apple.com/kb/HT214120
- http://seclists.org/fulldisclosure/2024/Jul/20
- http://seclists.org/fulldisclosure/2024/Jul/18
- http://seclists.org/fulldisclosure/2024/Jul/19
More curl vulnerabilities
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- TI-2026-16162 Negotiate ambient user conn reuse CVSS 3.1CRITICAL 9.8
- TI-2026-10231 cross-origin Digest auth state leak CVSS 3.1CRITICAL 9.8
- TI-2026-09063 HTTP/2 stream-dependency tree UAF CVSS 3.1CRITICAL 9.8
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Sources
- CVE-2024-2398 · CVE Program
- CVE-2024-2398 · NVD
- FIRST EPSS
- GHSA-mq8w-c2j9-rqxc · GitHub Advisory Database · CC BY 4.0
- CVE-2024-2398 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences