CVE-2026-48863

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2026-48863
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-48863.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-48863
Downstream
Related
Published
2026-07-16T00:46:12.846Z
Modified
2026-07-19T09:09:25.630619Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Libsolv: stack-based buffer overflow in libsolv eddsa pgp signature verification allows denial of service
Details

A flaw was found in libsolv. A stack-based buffer overflow vulnerability exists in the PGP verification component due to incorrect length handling when copying EdDSA 's' MPI into a stack buffer. A remote attacker could craft a malicious Ed25519 PGP signature with mismatched MPI lengths. Processing this crafted signature could lead to a denial of service in automated package or repository processing workflows.

Database specific 
{
    "cwe_ids": [
        "CWE-121"
    ],
    "cna_assigner": "redhat",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48863.json"
}
References

Affected packages

Git / github.com/opensuse/libsolv

Affected ranges

Type
GIT
Repo
https://github.com/opensuse/libsolv
Events
Introduced
1be9896f3702c4996e1a43e1c9b5c18366ff42b9
Fixed
44f8c085045b1f771641091bbb2b810d12cff9e8
Database specific 
{
    "extracted_events": [
        {
            "introduced": "0.6.4"
        },
        {
            "fixed": "0.7.38"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

0.*
0.6.10
0.6.11
0.6.12
0.6.13
0.6.14
0.6.15
0.6.16
0.6.17
0.6.18
0.6.19
0.6.20
0.6.21
0.6.22
0.6.23
0.6.24
0.6.25
0.6.26
0.6.27
0.6.28
0.6.29
0.6.30
0.6.31
0.6.32
0.6.33
0.6.34
0.6.35
0.6.4
0.6.5
0.6.6
0.6.7
0.6.8
0.6.9
0.7.0
0.7.1
0.7.10
0.7.11
0.7.12
0.7.13
0.7.14
0.7.15
0.7.16
0.7.17
0.7.18
0.7.19
0.7.2
0.7.20
0.7.21
0.7.22
0.7.23
0.7.24
0.7.25
0.7.26
0.7.27
0.7.28
0.7.29
0.7.3
0.7.30
0.7.31
0.7.32
0.7.33
0.7.34
0.7.35
0.7.36
0.7.37
0.7.4
0.7.5
0.7.6
0.7.7
0.7.8
0.7.9

Database specific

vanir_signatures 
[
    {
        "id": "CVE-2026-48863-73543eac",
        "deprecated": false,
        "source": "https://github.com/opensuse/libsolv/commit/44f8c085045b1f771641091bbb2b810d12cff9e8",
        "target": {
            "file": "ext/solv_pgpvrfy.c"
        },
        "digest": {
            "line_hashes": [
                "329850278763516896724822849770523560059",
                "142295490632953770221805065423600094178",
                "4706000968535030315093977171942802056",
                "107972823932981198622960483210413454460"
            ],
            "threshold": 0.9
        },
        "signature_version": "v1",
        "signature_type": "Line"
    }
]
vanir_signatures_modified 
"2026-07-19T09:09:25Z"
source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-48863.json"