CURL-CVE-2026-8925

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Source
https://curl.se/docs/CVE-2026-8925.html
Import Source
https://curl.se/docs/CURL-CVE-2026-8925.json
JSON Data
https://api.test.osv.dev/v1/vulns/CURL-CVE-2026-8925
Aliases
Published
2026-06-24T08:00:00Z
Modified
2026-09-07T14:07:28Z
Summary
SASL double-free
Details

The curl logic that works with SASL authentication could end up cleaning up the GSASL context twice without clearing the pointer in between, making it free() the same pointer twice.

Database specific 
{
    "CWE": {
        "desc": "Double Free",
        "id": "CWE-415"
    },
    "URL": "https://curl.se/docs/CVE-2026-8925.json",
    "affects": "both",
    "issue": "https://hackerone.com/reports/3735193",
    "last_affected": "8.20.0",
    "package": "curl",
    "severity": "Medium",
    "www": "https://curl.se/docs/CVE-2026-8925.html"
}
Credits
    • Joshua Rogers (Aisle Research) - FINDER
    • Viktor Szakats - REMEDIATION_DEVELOPER

Affected packages

Git / github.com/curl/curl.git

Affected ranges

Type
SEMVER
Events
Introduced
8.15.0
Fixed
8.21.0
Type
SEMVER
Events
Introduced
8.15.0
Fixed
8.20.1
Type
SEMVER
Events
Introduced
8.15.0
Fixed
8.16.1
Type
GIT
Repo
https://github.com/curl/curl.git
Events
Introduced
ab650379a8c25ca952f651476d25b4cdd77bb3fc
Fixed
3da249e1f0716c06644ed3522a37a8bf81808012

Affected versions

8.*
8.15.0
8.16.0
8.17.0
8.18.0
8.19.0
8.20.0
Other
curl-8_15_0
curl-8_16_0
curl-8_17_0
curl-8_18_0
curl-8_19_0
curl-8_20_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

Database specific

source 
"https://curl.se/docs/CURL-CVE-2026-8925.json"
vanir_signatures 
[
    {
        "deprecated": false,
        "digest": {
            "function_hash": "302084604714407525692251374694272900329",
            "length": 369
        },
        "id": "CURL-CVE-2026-8925-2119fa0c",
        "signature_type": "Function",
        "signature_version": "v1",
        "source": "https://github.com/curl/curl.git/commit/3da249e1f0716c06644ed3522a37a8bf81808012",
        "target": {
            "file": "lib/vauth/gsasl.c",
            "function": "Curl_auth_gsasl_is_supported"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "317222883309502823860142597895135200148",
                "331108732736569959240708242580802890926",
                "35931978830601830520329644919584359428",
                "316091287703603607087007343834677822635",
                "286034720472754720016913912006726094777",
                "95164131527673258171731104945717953672",
                "10060228462306698533293701394813706719"
            ],
            "threshold": 0.9
        },
        "id": "CURL-CVE-2026-8925-3f7f0884",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/curl/curl.git/commit/3da249e1f0716c06644ed3522a37a8bf81808012",
        "target": {
            "file": "lib/vauth/gsasl.c"
        }
    }
]
vanir_signatures_modified 
"2026-09-07T14:07:28Z"