CURL-CVE-2026-80231

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Source
https://curl.se/docs/CVE-2026-80231.html
Import Source
https://curl.se/docs/CURL-CVE-2026-80231.json
JSON Data
https://api.osv.dev/v1/vulns/CURL-CVE-2026-80231
Aliases
Published
2026-09-02T08:00:00Z
Modified
2026-09-07T14:06:27Z
Summary
native CA store conn reuse
Details

A flaw in libcurl makes it wrongly reuse an existing HTTPS connection setup for a given hostname even when using a different Native CA Store setting (CURLSSLOPT_NATIVE_CA) than when the connection was created.

Database specific 
{
    "CWE": {
        "desc": "Exposure of Data Element to Wrong Session",
        "id": "CWE-488"
    },
    "URL": "https://curl.se/docs/CVE-2026-80231.json",
    "affects": "both",
    "issue": "https://hackerone.com/reports/3969368",
    "last_affected": "8.21.0",
    "package": "curl",
    "severity": "Low",
    "www": "https://curl.se/docs/CVE-2026-80231.html"
}
Credits
    • Stanislav Fort (Aisle Research) - FINDER
    • Daniel Stenberg - REMEDIATION_DEVELOPER

Affected packages

Git / github.com/curl/curl.git

Affected ranges

Type
SEMVER
Events
Introduced
7.71.0
Fixed
8.22.0
Type
SEMVER
Events
Introduced
7.71.0
Fixed
8.20.1
Type
SEMVER
Events
Introduced
7.71.0
Fixed
8.16.1
Type
SEMVER
Events
Introduced
7.71.0
Fixed
8.14.2
Type
GIT
Repo
https://github.com/curl/curl.git
Events
Introduced
148534db57dda611cf8516e92e4d6e35fc1e5074
Fixed
7be1e70cb6bcd83e130ecfe8cb91b6a7dcdeff42

Affected versions

7.*
7.71.0
7.71.1
7.72.0
7.73.0
7.74.0
7.75.0
7.76.0
7.76.1
7.77.0
7.78.0
7.79.0
7.79.1
7.80.0
7.81.0
7.82.0
7.83.0
7.83.1
7.84.0
7.85.0
7.86.0
7.87.0
7.88.0
7.88.1
8.*
8.0.0
8.0.1
8.1.0
8.1.1
8.1.2
8.10.0
8.10.1
8.11.0
8.11.1
8.12.0
8.12.1
8.13.0
8.14.0
8.14.1
8.15.0
8.16.0
8.17.0
8.18.0
8.19.0
8.2.0
8.2.1
8.20.0
8.21.0
8.3.0
8.4.0
8.5.0
8.6.0
8.7.0
8.7.1
8.8.0
8.9.0
8.9.1
Other
curl-7_71_0
curl-7_71_1
curl-7_72_0
curl-7_73_0
curl-7_74_0
curl-7_75_0
curl-7_76_0
curl-7_76_1
curl-7_77_0
curl-7_78_0
curl-7_79_0
curl-7_79_1
curl-7_80_0
curl-7_81_0
curl-7_82_0
curl-7_83_0
curl-7_83_1
curl-7_84_0
curl-7_85_0
curl-7_86_0
curl-7_87_0
curl-7_88_0
curl-7_88_1
curl-8_0_0
curl-8_0_1
curl-8_10_0
curl-8_10_1
curl-8_11_0
curl-8_11_1
curl-8_12_0
curl-8_12_1
curl-8_13_0
curl-8_14_0
curl-8_14_1
curl-8_15_0
curl-8_16_0
curl-8_17_0
curl-8_18_0
curl-8_19_0
curl-8_1_0
curl-8_1_1
curl-8_1_2
curl-8_20_0
curl-8_21_0
curl-8_2_0
curl-8_2_1
curl-8_3_0
curl-8_4_0
curl-8_5_0
curl-8_6_0
curl-8_7_0
curl-8_7_1
curl-8_8_0
curl-8_9_0
curl-8_9_1
rc-8_18_0-1
rc-8_18_0-2
rc-8_18_0-3
rc-8_19_0-1
rc-8_19_0-2
rc-8_19_0-3
rc-8_20_0-1
rc-8_20_0-2
rc-8_20_0-3
rc-8_21_0-1
rc-8_21_0-2
rc-8_21_0-3
rc-8_22_0-1
rc-8_22_0-2
tiny-curl-7_72_0
tiny-curl-8_4_0

Database specific

source 
"https://curl.se/docs/CURL-CVE-2026-80231.json"
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vanir_signatures_modified 
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