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TI-2022-10666 Aliases CVE-2022-27782GHSA-x38v-8q6p-w65c

Improper certificate validation in https://github.com/curl/curl

Priority HIGH 72CWE-840Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Spoofing
Confidentiality · integrity · availability
None · High · None
Fix status
Partial Red Hat: 3 fixed, 4 without a fix

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-295.

Summary

libcurl would reuse a previously created connection even when a TLS or SSHrelated option had been changed that should have prohibited reuse.libcurl keeps previously used connections in a connection pool for subsequenttransfers to reuse if one of them matches the setup. However, several TLS andSSH settings were left out from the configuration match checks, making themmatch too easily.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.03095 87th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial Red Hat: 2 advisoriesRed Hat: 3 fixed, 4 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
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

VendorProductAffected versionsFixed inStatusSource
—https://github.com/curl/curlFixed in 7.83.1—No fix listedCNA
  • https://github.com/curl/curl Vendor— Affected Fixed in 7.83.1 Fixed in — No fix listed CNA

CPE configurations NVD · 5

CPEVersionsRoleVendor
cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*before 7.83.1VulnerableHaxx
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*10.0VulnerableDebian
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*11.0VulnerableDebian
cpe:2.3:a:splunk:universal_forwarder:*:*:*:*:*:*:*:*8.2.0 to before 8.2.12; 9.0.0 to before 9.0.6VulnerableSplunk
cpe:2.3:a:splunk:universal_forwarder:9.1.0:*:*:*:*:*:*:*9.1.0VulnerableSplunk
  • cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:* Versions before 7.83.1 Vulnerable ·Haxx
  • cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian
  • cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* Versions 11.0 Vulnerable ·Debian
  • 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-2022:5245 Released 2022-07-01 · Red Hat rating Moderate
    curl security update
    • Red Hat Enterprise Linux AppStream (v. 9) libcurl-devel-7.76.1-14.el9_0.4
    • Red Hat Enterprise Linux BaseOS (v. 9) curl-7.76.1-14.el9_0.4, curl-minimal-7.76.1-14.el9_0.4, libcurl-7.76.1-14.el9_0.4 +1
  • RHSA-2022:5313 Released 2022-06-30 · Red Hat rating Moderate
    curl security update
    • Red Hat Enterprise Linux BaseOS (v. 8) curl-7.61.1-22.el8_6.3, libcurl-7.61.1-22.el8_6.3, libcurl-devel-7.61.1-22.el8_6.3 +1

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
.NET Core 3.1 on Red Hat Enterprise LinuxAffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 7AffectedNo fix planned: Out of support scope
Red Hat Software CollectionsAffectedNo fix planned: Will not fix
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2022:5245
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2022:5313
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2022:5245
Not affected: 1 product
  • Red Hat JBoss Core Services

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-27782
  2. 2026-10-03 Alias added: GHSA-x38v-8q6p-w65c

References

Exploit 1

Advisory 4

Other 1

Sources

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