CURL-CVE-2025-15079

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Source
https://curl.se/docs/CVE-2025-15079.html
Import Source
https://curl.se/docs/CURL-CVE-2025-15079.json
JSON Data
https://api.osv.dev/v1/vulns/CURL-CVE-2025-15079
Aliases
  • CVE-2025-15079
Published
2026-01-07T08:00:00Z
Modified
2026-01-09T05:51:59.157439Z
Summary
libssh global known_hosts override
Details

When doing SSH-based transfers using either SCP or SFTP, and setting the knownhosts file, libcurl could still mistakenly accept connecting to hosts *not present* in the specified file if they were added as recognized in the libssh *global* knownhosts file.

Database specific 
{
    "CWE": {
        "id": "CWE-297",
        "desc": "Improper Validation of Certificate with Host Mismatch"
    },
    "www": "https://curl.se/docs/CVE-2025-15079.html",
    "severity": "Low",
    "URL": "https://curl.se/docs/CVE-2025-15079.json",
    "issue": "https://hackerone.com/reports/3477116",
    "affects": "both",
    "award": {
        "currency": "USD",
        "amount": "505"
    },
    "package": "curl",
    "last_affected": "8.17.0"
}
References
Credits
    • Harry Sintonen - FINDER
    • Daniel Stenberg - REMEDIATION_DEVELOPER

Affected packages

Git / github.com/curl/curl.git

Affected ranges

Type
SEMVER
Events
Introduced
7.58.0
Fixed
8.18.0
Type
GIT
Repo
https://github.com/curl/curl.git
Events
Introduced
c92d2e14cfb0db662f958effd2ac86f995cf1b5a
Fixed
adca486c125d9a6d9565b9607a19dce803a8b479

Affected versions

7.*

7.58.0
7.59.0
7.60.0
7.61.0
7.61.1
7.62.0
7.63.0
7.64.0
7.64.1
7.65.0
7.65.1
7.65.2
7.65.3
7.66.0
7.67.0
7.68.0
7.69.0
7.69.1
7.70.0
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
8.2.0
8.2.1
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

Database specific

source

"https://curl.se/docs/CURL-CVE-2025-15079.json"

vanir_signatures

[
    {
        "deprecated": false,
        "id": "CURL-CVE-2025-15079-2a01c048",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "154575153157544741194860835334875511962",
                "309481514725220947052872221583547583347",
                "254045176640521679480925776028254756608",
                "140624623419491185855662600675706734772"
            ]
        },
        "source": "https://github.com/curl/curl.git/commit/adca486c125d9a6d9565b9607a19dce803a8b479",
        "signature_version": "v1",
        "signature_type": "Line",
        "target": {
            "file": "lib/vssh/libssh.c"
        }
    },
    {
        "deprecated": false,
        "id": "CURL-CVE-2025-15079-95faa990",
        "digest": {
            "length": 2963.0,
            "function_hash": "179759690000595925597507395316046644025"
        },
        "source": "https://github.com/curl/curl.git/commit/adca486c125d9a6d9565b9607a19dce803a8b479",
        "signature_version": "v1",
        "signature_type": "Function",
        "target": {
            "file": "lib/vssh/libssh.c",
            "function": "myssh_connect"
        }
    }
]