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.
Metrics
Affected Vendors & Products
References
History
Sat, 18 Jul 2026 03:30:00 +0000
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ssvc
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Thu, 16 Jul 2026 01:00:00 +0000
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| Title | libsolv: Stack-based buffer overflow in libsolv EdDSA PGP signature verification allows denial of service | Libsolv: stack-based buffer overflow in libsolv eddsa pgp signature verification allows denial of service |
| First Time appeared |
Redhat
Redhat enterprise Linux Redhat hummingbird Redhat openshift Redhat rhui Redhat satellite |
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| CPEs | cpe:/a:redhat:hummingbird:1 cpe:/a:redhat:openshift:4 cpe:/a:redhat:rhui:4::el8 cpe:/a:redhat:satellite:6 cpe:/o:redhat:enterprise_linux:10 cpe:/o:redhat:enterprise_linux:7 cpe:/o:redhat:enterprise_linux:8 cpe:/o:redhat:enterprise_linux:9 |
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| Vendors & Products |
Redhat
Redhat enterprise Linux Redhat hummingbird Redhat openshift Redhat rhui Redhat satellite |
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| References |
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Sat, 30 May 2026 23:00:00 +0000
| Type | Values Removed | Values Added |
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| First Time appeared |
Libsolv
Libsolv libsolv |
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| Vendors & Products |
Libsolv
Libsolv libsolv |
Wed, 27 May 2026 00:15:00 +0000
| Type | Values Removed | Values Added |
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| Description | 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. | |
| Title | libsolv: Stack-based buffer overflow in libsolv EdDSA PGP signature verification allows denial of service | |
| Weaknesses | CWE-121 | |
| References |
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| Metrics |
threat_severity
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cvssV3_1
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Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2026-07-18T02:39:45.746Z
Reserved: 2026-05-25T20:59:30.305Z
Link: CVE-2026-48863
Updated: 2026-07-16T12:04:46.875Z
No data.
OpenCVE Enrichment
Updated: 2026-05-30T21:22:42Z