CURL-CVE-2026-92392

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Source
https://curl.se/docs/CVE-2026-92392.html
Import Source
https://curl.se/docs/CURL-CVE-2026-92392.json
JSON Data
https://api.osv.dev/v1/vulns/CURL-CVE-2026-92392
Aliases
  • CVE-2026-92392
Published
2026-10-14T08:00:00Z
Modified
2026-10-14T19:02:59Z
Summary
HTTP/2 upload Use-After-Free
Details

During an upload, curl mishandles HTTP/2 RST_STREAM received from the server (with reason HTTP_1_1_REQUIRED or REFUSED_STREAM) leading to a use after free of a struct Curl_easy object.

Database specific 
{
    "CWE":  {
        "desc":  "Use After Free",
        "id":  "CWE-416"
    },
    "URL":  "https://curl.se/docs/CVE-2026-92392.json",
    "affects":  "both",
    "issue":  "https://hackerone.com/reports/4030333",
    "last_affected":  "8.22.0",
    "package":  "curl",
    "severity":  "High",
    "www":  "https://curl.se/docs/CVE-2026-92392.html"
}
Credits
    • Luna with Claude - FINDER
    • Anthropic - FINDER
    • Stefan Eissing - REMEDIATION_DEVELOPER

Affected packages

Git / github.com/curl/curl.git

Affected ranges

Type
SEMVER
Events
Introduced
8.12.0
Fixed
8.14.3
Introduced
8.15.0
Fixed
8.16.2
Introduced
8.17.0
Fixed
8.20.2
Introduced
8.21.0
Fixed
8.23.0
Type
GIT
Repo
https://github.com/curl/curl.git
Events
Introduced
cd9107e0128191b7b5396b9eb81bbd20c2d36755
Fixed
8b0744af5b1b631da5b938ca31c3f9895ad5a321

Affected versions

8.*
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
8.20.0
8.21.0
8.22.0
Other
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_20_0
curl-8_21_0
curl-8_22_0
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
rc-8_22_0-3
rc-8_23_0-1
rc-8_23_0-2
rc-8_23_0-3

Database specific

source 
"https://curl.se/docs/CURL-CVE-2026-92392.json"
vanir_signatures 
[
    {
        "deprecated":  false,
        "digest":  {
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            "threshold":  0.9
        },
        "id":  "CURL-CVE-2026-92392-85f53260",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://github.com/curl/curl.git/commit/8b0744af5b1b631da5b938ca31c3f9895ad5a321",
        "target":  {
            "file":  "lib/multi.c"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
            "function_hash":  "24696468084555479272929369446571393409",
            "length":  1402
        },
        "id":  "CURL-CVE-2026-92392-ae3da486",
        "signature_type":  "Function",
        "signature_version":  "v1",
        "source":  "https://github.com/curl/curl.git/commit/8b0744af5b1b631da5b938ca31c3f9895ad5a321",
        "target":  {
            "file":  "lib/multi.c",
            "function":  "multi_done"
        }
    }
]
vanir_signatures_modified 
"2026-10-14T19:02:59Z"