TI-2022-20905 Aliases CVE-2022-42915 GHSA-98w6-hw73-ph8m

curl before 7.86.0 has a double free.

MEDIUM 44CWE-415Published 2022-10-29 · Updated 2026-10-14

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: High
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-415 and the CVSS impact.

Summary

curl before 7.86.0 has a double free. If curl is told to use an HTTP proxy for a transfer with a non-HTTP(S) URL, it sets up the connection to the remote server by issuing a CONNECT request to the proxy, and then tunnels the rest of the protocol through. An HTTP proxy might refuse this request (HTTP proxies often only allow outgoing connections to specific port numbers, like 443 for HTTPS) and instead return a non-200 status code to the client. Due to flaws in the error/cleanup handling, this could trigger a double free in curl if one of the following schemes were used in the URL for the transfer: dict, gopher, gophers, ldap, ldaps, rtmp, rtmps, or telnet. The earliest affected version is 7.77.0.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.03651 89th percentileScored 2026-11-07

Fix Fixed Red Hat: 2 advisories

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

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
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 16

CPE	Versions	Role	Vendor
cpe:2.3:a:haxx:curl::::::::	7.77.0 to before 7.86.0	Vulnerable	Haxx
cpe:2.3:o:fedoraproject:fedora:35:::::::*	35	Vulnerable	Fedoraproject
cpe:2.3:o:fedoraproject:fedora:36:::::::*	36	Vulnerable	Fedoraproject
cpe:2.3:o:fedoraproject:fedora:37:::::::*	37	Vulnerable	Fedoraproject
cpe:2.3:o:netapp:h300s_firmware:-:::::::*	not specified by NVD	Vulnerable	NetApp
cpe:2.3:h:netapp:h300s:-:::::::*	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:h700s_firmware:-:::::::*	not specified by NVD	Vulnerable	NetApp
cpe:2.3:h:netapp:h700s:-:::::::*	not specified by NVD	Running on	NetApp

cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:* Versions 7.77.0 to before 7.86.0 Vulnerable ·Haxx
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* Versions 35 Vulnerable ·Fedoraproject
cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:* Versions 36 Vulnerable ·Fedoraproject
cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:* Versions 37 Vulnerable ·Fedoraproject
cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:* 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:h700s_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp

Show 6 more CPE

CPE	Versions	Role	Vendor
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:a:netapp:ontap_9:-:::::::*	not specified by NVD	Vulnerable	NetApp
cpe:2.3:o:apple:macos::::::::	12.0.0 to before 12.6.3; 13.0 to before 13.2	Vulnerable	Apple
cpe:2.3:a:splunk:universal_forwarder::::::::	8.2.0 to before 8.2.12; 9.0.0 to before 9.0.6	Vulnerable	Splunk
cpe:2.3:a:splunk:universal_forwarder:9.1.0:::::::*	9.1.0	Vulnerable	Splunk

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:a:netapp:ontap_9:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* Versions 12.0.0 to before 12.6.3; 13.0 to before 13.2 Vulnerable ·Apple
cpe:2.3:a:splunk:universal_forwarder:*:*:*:*:*:*:*:* Versions 8.2.0 to before 8.2.12; 9.0.0 to before 9.0.6 Vulnerable ·Splunk
cpe:2.3:a:splunk:universal_forwarder:9.1.0:*:*:*:*:*:*:* Versions 9.1.0 Vulnerable ·Splunk

Remediation

Red Hat 2 advisories

RHSA-2022:8841 Released 2022-12-08 · Red Hat rating Important
Red Hat JBoss Core Services Apache HTTP Server 2.4.51 SP1 security update
- Red Hat JBoss Core Services
RHSA-2022:8840 Released 2022-12-08 · Red Hat rating Moderate
Red Hat JBoss Core Services Apache HTTP Server 2.4.51 SP1 security update
- Red Hat JBoss Core Services on RHEL 7 Server jbcs-httpd24-curl-7.86.0-2.el7jbcs, jbcs-httpd24-httpd-2.4.51-37.el7jbcs, jbcs-httpd24-httpd-devel-2.4.51-37.el7jbcs +15
- Red Hat JBoss Core Services on RHEL 8 jbcs-httpd24-curl-7.86.0-2.el8jbcs, jbcs-httpd24-httpd-2.4.51-37.el8jbcs, jbcs-httpd24-httpd-devel-2.4.51-37.el8jbcs +15

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Product	Status	Plan or fix
Red Hat JBoss Core Services	Fixed	RHSA-2022:8841
Red Hat JBoss Core Services on RHEL 7 Server	Fixed	RHSA-2022:8840
Red Hat JBoss Core Services on RHEL 8	Fixed	RHSA-2022:8840

Not affected: 6 products

Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 9
Red Hat JBoss Core Services on RHEL 7 Server
Red Hat JBoss Core Services on RHEL 8

Timeline

2026-10-02 Threatist record created from CVE-2022-42915
2026-10-03 Alias added: GHSA-98w6-hw73-ph8m
2026-10-09 Fix available: RHSA-2022:8841 · Red Hat
2026-10-16 Fix available: Red Hat JBoss Core Services · Red Hat

References

Advisory 10

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences