TI-2025-08328 Aliases CVE-2025-9086 GHSA-v676-f8gm-92r9

Out of bounds read for cookie path

LOW 36CWE-125Published 2025-09-12 · Updated 2026-09-15

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: Partial Red Hat: 16 fixed, 6 without a fix

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-125 and the CVSS impact.

Summary

1. A cookie is set using the `secure` keyword for `https://target` 2. curl is redirected to or otherwise made to speak with `http://target` (same hostname, but using clear text HTTP) using the same cookie set 3. The same cookie name is set - but with only a slash as path (`path="/"`). Since this site is not secure, the cookie *should* be ignored. 4. A bug in the path comparison logic makes curl read outside a heap buffer boundary The bug either causes a crash or it potentially makes the comparison come to the wrong conclusion and lets the clear-text site override the contents of the secure cookie, contrary to expectations and depending on the memory contents immediately following the single-byte allocation that holds the path. The presumed and correct behavior would be to plainly ignore the second set of the cookie since it was already set as secure on a secure host so overriding it on an insecure host should not be okay.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.01463 73rd percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Partial curl (curl): 8.14.2, 8.16.0Red Hat: 19 advisoriesRed Hat: 16 fixed, 6 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
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	8.13.0 to before 8.14.2; 8.15.0 to before 8.16.0	8.14.2, 8.16.0	Patch available	CNA
curl	curl	8.15.0; 8.14.1; 8.14.0; 8.13.0	—	No fix listed	CNA

curl Vendorcurl Affected 8.13.0 to before 8.14.2; 8.15.0 to before 8.16.0 Fixed in 8.14.2, 8.16.0 Patch available CNA
curl Vendorcurl Affected 8.15.0; 8.14.1; 8.14.0; 8.13.0 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:a:haxx:curl::::::::	8.13.0 to before 8.16.0	Vulnerable	Haxx
cpe:2.3:o:debian:debian_linux:11.0:::::::*	11.0	Vulnerable	Debian

cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:* Versions 8.13.0 to before 8.16.0 Vulnerable ·Haxx
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* Versions 11.0 Vulnerable ·Debian

Remediation

Fix · CNA curl (curl) Fixed in 8.14.2, 8.16.0

Red Hat 19 advisories

RHSA-2026:82895 Released 2026-10-14 · Red Hat rating Important
Red Hat Hardened Images RPMs bug fix and enhancement update
- Red Hat Hardened Images curl-8.23.0-0.1.hum1@aarch64, curl-8.23.0-0.1.hum1@s390x, curl-8.23.0-0.1.hum1@src +10
RHSA-2026:82857 Released 2026-10-14 · Red Hat rating Important
cert-manager Operator for Red Hat OpenShift 1.18.2
- Cert Manager support for Red Hat OpenShift release 1.18 registry.redhat.io/cert-manager/cert-manager-operator-bundle
RHSA-2026:82372 Released 2026-10-13 · Red Hat rating Important
cert-manager Operator for Red Hat OpenShift 1.18.2
- Cert Manager support for Red Hat OpenShift release 1.18 registry.redhat.io/cert-manager/cert-manager-operator-rhel9

Show 16 more Red Hat advisories

RHSA-2026:82354 Released 2026-10-13 · Red Hat rating Important
cert-manager Operator for Red Hat OpenShift 1.18.2
- Cert Manager support for Red Hat OpenShift release 1.18 registry.redhat.io/cert-manager/cert-manager-istio-csr-rhel9
RHSA-2026:82347 Released 2026-10-13 · Red Hat rating Important
cert-manager Operator for Red Hat OpenShift 1.18.2
- Cert Manager support for Red Hat OpenShift release 1.18 registry.redhat.io/cert-manager/jetstack-cert-manager-acmesolver-rhel9, registry.redhat.io/cert-manager/jetstack-cert-manager-rhel9
RHSA-2026:77255 Released 2026-10-07 · Red Hat rating Moderate
Red Hat Hardened Images RPMs bug fix and enhancement update
- Red Hat Hardened Images curl-8.22.0-1.1.hum1@aarch64, curl-8.22.0-1.1.hum1@s390x, curl-8.22.0-1.1.hum1@src +10
RHSA-2026:6893 Released 2026-04-07 · Red Hat rating Moderate
Red Hat Hardened Images RPMs bug fix and enhancement update
- Red Hat Hardened Images curl-8.19.0-3.hum1@aarch64, curl-8.19.0-3.hum1@src, curl-8.19.0-3.hum1@x86_64 +6
RHSA-2026:4943 Released 2026-03-18 · Red Hat rating Important
Red Hat Update Infrastructure 5.1 security update
- Red Hat Update Infrastructure 5 registry.redhat.io/rhui5/cds-rhel9, registry.redhat.io/rhui5/haproxy-rhel9, registry.redhat.io/rhui5/installer-rhel9 +1
RHSA-2026:2563 Released 2026-02-11 · Red Hat rating Important
Red Hat Update Infrastructure 5 security update
- Red Hat Update Infrastructure 5 registry.redhat.io/rhui5/cds-rhel9, registry.redhat.io/rhui5/haproxy-rhel9, registry.redhat.io/rhui5/installer-rhel9 +1
RHSA-2026:2485 Released 2026-02-10 · Red Hat rating Important
Insights proxy Container Image
- Red Hat Insights proxy 1.5 registry.redhat.io/insights-proxy/insights-proxy-container-rhel9
RHSA-2026:1825 Released 2026-02-03 · Red Hat rating Moderate
curl security update
- Red Hat Enterprise Linux AppStream (v. 10) libcurl-devel-8.12.1-2.el10_1.2
- Red Hat Enterprise Linux BaseOS (v. 10) curl-8.12.1-2.el10_1.2, libcurl-8.12.1-2.el10_1.2, libcurl-minimal-8.12.1-2.el10_1.2
RHSA-2026:1736 Released 2026-02-02 · Red Hat rating Important
A Subscription Management tool for finding and reporting Red Hat product usage
- Red Hat Discovery 2 registry.redhat.io/discovery/discovery-server-rhel9, registry.redhat.io/discovery/discovery-ui-rhel9
RHSA-2026:1477 Released 2026-01-28 · Red Hat rating Moderate
curl security update
- Red Hat Enterprise Linux BaseOS EUS (v. 10.0) curl-8.12.1-1.el10_0.4, libcurl-8.12.1-1.el10_0.4, libcurl-minimal-8.12.1-1.el10_0.4
RHSA-2026:1350 Released 2026-01-27 · Red Hat rating Moderate
curl security update
- Red Hat Enterprise Linux AppStream (v. 9) libcurl-devel-7.76.1-35.el9_7.3
- Red Hat Enterprise Linux BaseOS (v. 9) curl-7.76.1-35.el9_7.3, curl-minimal-7.76.1-35.el9_7.3, libcurl-7.76.1-35.el9_7.3 +1
RHSA-2025:23383 Released 2025-12-18 · Red Hat rating Moderate
curl security update
- Red Hat Enterprise Linux BaseOS (v. 8) curl-7.61.1-34.el8_10.9, libcurl-7.61.1-34.el8_10.9, libcurl-devel-7.61.1-34.el8_10.9 +1
RHSA-2025:23127 Released 2025-12-11 · Red Hat rating Moderate
curl security update
- Red Hat Enterprise Linux BaseOS E4S (v.9.2) curl-7.76.1-23.el9_2.8, curl-minimal-7.76.1-23.el9_2.8, libcurl-7.76.1-23.el9_2.8 +1
RHSA-2025:23126 Released 2025-12-11 · Red Hat rating Moderate
curl security update
- Red Hat Enterprise Linux BaseOS E4S (v.9.0) curl-7.76.1-14.el9_0.12, curl-minimal-7.76.1-14.el9_0.12, libcurl-7.76.1-14.el9_0.12 +1
RHSA-2025:23125 Released 2025-12-11 · Red Hat rating Moderate
curl security update
- Red Hat Enterprise Linux BaseOS EUS (v.9.4) curl-7.76.1-29.el9_4.3, curl-minimal-7.76.1-29.el9_4.3, libcurl-7.76.1-29.el9_4.3 +1
RHSA-2025:23043 Released 2025-12-10 · Red Hat rating Moderate
curl security update
- Red Hat Enterprise Linux AppStream EUS (v.9.6) libcurl-devel-7.76.1-31.el9_6.2
- Red Hat Enterprise Linux BaseOS EUS (v.9.6) curl-7.76.1-31.el9_6.2, curl-minimal-7.76.1-31.el9_6.2, libcurl-7.76.1-31.el9_6.2 +1

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2025-09-12
curl 8.14.2, 8.16.0
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2025-09319 predictable WebSocket maskPriority LOW 25
Show all 2 records →

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 yet: Fix deferred
Red Hat Enterprise Linux 7	Affected	No fix yet: Fix deferred
Red Hat JBoss Core Services	Affected	No fix yet: Fix deferred
Red Hat OpenShift Container Platform 4	Affected	No fix yet: Fix deferred
Red Hat OpenShift Dev Spaces	Affected	No fix yet: Fix deferred
Red Hat Trusted Profile Analyzer	Affected	No fix yet: Fix deferred
Cert Manager support for Red Hat OpenShift release 1.18	Fixed	RHSA-2026:82347, RHSA-2026:82354, RHSA-2026:82372, RHSA-2026:82857
Red Hat Discovery 2	Fixed	RHSA-2026:1736
Red Hat Enterprise Linux AppStream (v. 10)	Fixed	RHSA-2026:1825
Red Hat Enterprise Linux AppStream (v. 9)	Fixed	RHSA-2026:1350
Red Hat Enterprise Linux AppStream EUS (v.9.6)	Fixed	RHSA-2025:23043
Red Hat Enterprise Linux BaseOS (v. 10)	Fixed	RHSA-2026:1825
Red Hat Enterprise Linux BaseOS (v. 8)	Fixed	RHSA-2025:23383
Red Hat Enterprise Linux BaseOS (v. 9)	Fixed	RHSA-2026:1350
Red Hat Enterprise Linux BaseOS E4S (v.9.0)	Fixed	RHSA-2025:23126
Red Hat Enterprise Linux BaseOS E4S (v.9.2)	Fixed	RHSA-2025:23127
Red Hat Enterprise Linux BaseOS EUS (v. 10.0)	Fixed	RHSA-2026:1477
Red Hat Enterprise Linux BaseOS EUS (v.9.4)	Fixed	RHSA-2025:23125
Red Hat Enterprise Linux BaseOS EUS (v.9.6)	Fixed	RHSA-2025:23043
Red Hat Hardened Images	Fixed	RHSA-2026:6893, RHSA-2026:77255, RHSA-2026:82895
Red Hat Insights proxy 1.5	Fixed	RHSA-2026:2485
Red Hat Update Infrastructure 5	Fixed	RHSA-2026:2563, RHSA-2026:4943

Not affected: 10 products

Red Hat Discovery 2
Red Hat Enterprise Linux AppStream E4S (v.9.0)
Red Hat Enterprise Linux AppStream E4S (v.9.2)
Red Hat Enterprise Linux AppStream EUS (v. 10.0)
Red Hat Enterprise Linux AppStream EUS (v.9.4)
Red Hat Enterprise Linux BaseOS E4S (v.9.0)
Red Hat Enterprise Linux BaseOS E4S (v.9.2)
Red Hat Enterprise Linux BaseOS EUS (v. 10.0)
Red Hat Enterprise Linux BaseOS EUS (v.9.4)
Red Hat Update Infrastructure 5

Timeline

2026-10-02 Threatist record created from CVE-2025-9086
2026-10-03 Alias added: GHSA-v676-f8gm-92r9
2026-10-12 Fix available: RHSA-2026:77255 · Red Hat
2026-10-12 Affected versions changed · Red Hat
2026-10-14 Fix available: RHSA-2026:82372 · Red Hat
2026-10-14 Fix available: RHSA-2026:82354 · Red Hat
2026-10-14 Fix available: RHSA-2026:82347 · Red Hat
2026-10-15 Fix available: RHSA-2026:82857 · Red Hat
2026-10-16 Fix available: RHSA-2026:82895 · Red Hat
2026-10-16 Fix available: Cert Manager support for Red Hat OpenShift release 1.18 · Red Hat

References

Exploit 1

https://hackerone.com/reports/3294999

Patch 2

Advisory 2

TI-2023-19922 Out-of-bounds write in curl CVSS 3.1CRITICAL 9.8
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
TI-2026-07976 stale proxy password leak CVSS 3.1CRITICAL 9.8
TI-2026-07845 SASL double-free CVSS 3.1CRITICAL 9.8

See all 103 →

Sources

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