CVE-2026-5260

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Source
https://cve.org/CVERecord?id=CVE-2026-5260
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-5260.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-5260
Downstream
ALPINE (1)
AZL (1)
BELL (1)
CLSA (13)
DEBIAN (1)
ECHO (1)
OESA (5)
openSUSE (2)
RHSA (11)
RLSA (3)
SUSE (9)
UBUNTU (1)
Related
openSUSE (2)
SUSE (9)
Published
2026-05-26T21:29:20Z
Modified
2026-10-28T02:30:59Z
Severity
  • 8.2 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H CVSS Calculator
Summary
Gnutls: gnutls: information disclosure via heap overread in rsa key exchange
Details

A flaw was found in libgnutls. A remote attacker, by sending an extremely short premaster secret during an RSA key exchange to a server using an RSA key backed by a PKCS#11 token, could trigger a short heap overread. This memory corruption vulnerability could lead to information disclosure.

Database specific 
{
    "cna_assigner":  "redhat",
    "cwe_ids":  [
        "CWE-126"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/5xxx/CVE-2026-5260.json",
    "unresolved_ranges":  [
        {
            "extracted_events":  [
                {
                    "range":  [
                        {
                            "fixed":  "0:3.8.10-4.el10_2"
                        },
                        {
                            "fixed":  "0:3.8.9-9.el10_0.19"
                        },
                        {
                            "fixed":  "0:3.6.16-8.el8_10.6"
                        },
                        {
                            "fixed":  "0:3.6.16-8.el8_10.6"
                        },
                        {
                            "fixed":  "0:3.6.14-10.el8_4.1"
                        },
                        {
                            "fixed":  "0:4.13-3.el8_4.1"
                        },
                        {
                            "fixed":  "0:3.6.14-10.el8_4.1"
                        },
                        {
                            "fixed":  "0:4.13-3.el8_4.1"
                        },
                        {
                            "fixed":  "0:3.6.16-5.el8_6.5"
                        },
                        {
                            "fixed":  "0:4.13-3.el8_6.2"
                        },
                        {
                            "fixed":  "0:3.6.16-5.el8_6.5"
                        },
                        {
                            "fixed":  "0:4.13-3.el8_6.2"
                        },
                        {
                            "fixed":  "0:3.6.16-7.el8_8.4"
                        },
                        {
                            "fixed":  "0:4.13-4.el8_8.1"
                        },
                        {
                            "fixed":  "0:3.6.16-7.el8_8.4"
                        },
                        {
                            "fixed":  "0:4.13-4.el8_8.1"
                        },
                        {
                            "fixed":  "0:3.8.10-4.el9_8"
                        },
                        {
                            "fixed":  "0:3.8.10-4.el9_8"
                        },
                        {
                            "fixed":  "0:3.7.6-21.el9_2.7"
                        },
                        {
                            "fixed":  "0:3.8.3-4.el9_4.6"
                        },
                        {
                            "fixed":  "0:3.8.3-6.el9_6.4"
                        },
                        {
                            "fixed":  "412.86.202608241157-0"
                        },
                        {
                            "fixed":  "413.92.202609302032-0"
                        },
                        {
                            "fixed":  "414.92.202609111941-0"
                        },
                        {
                            "fixed":  "415.92.202610081130-0"
                        },
                        {
                            "fixed":  "416.94.202608150307-0"
                        },
                        {
                            "fixed":  "417.94.202608250221-0"
                        },
                        {
                            "fixed":  "418.94.202608142238-0"
                        },
                        {
                            "fixed":  "4.19.9.6.202607151909-0"
                        },
                        {
                            "fixed":  "1791371080"
                        },
                        {
                            "fixed":  "1791371069"
                        },
                        {
                            "fixed":  "1791788287"
                        },
                        {
                            "fixed":  "1791970484"
                        },
                        {
                            "fixed":  "1791459707"
                        },
                        {
                            "fixed":  "1791459711"
                        },
                        {
                            "fixed":  "1791459759"
                        },
                        {
                            "fixed":  "1789029076"
                        },
                        {
                            "fixed":  "1791966259"
                        },
                        {
                            "fixed":  "1790598593"
                        },
                        {
                            "fixed":  "1782159791"
                        },
                        {
                            "fixed":  "1782166952"
                        },
                        {
                            "fixed":  "3.8.13-1.hum1"
                        },
                        {
                            "fixed":  "1790703542"
                        },
                        {
                            "fixed":  "1781525684"
                        },
                        {
                            "fixed":  "1781525671"
                        },
                        {
                            "fixed":  "1781525693"
                        },
                        {
                            "fixed":  "1781525739"
                        },
                        {
                            "fixed":  "1787241211"
                        },
                        {
                            "fixed":  "1787135742"
                        },
                        {
                            "fixed":  "1787241260"
                        }
                    ],
                    "source":  "AFFECTED_FIELD",
                    "strategy":  "InverseAffectedRanges"
                }
            ]
        }
    ]
}
References

Affected packages

Git / gitlab.com/gnutls/gnutls

Affected ranges

Type
GIT
Repo
https://gitlab.com/gnutls/gnutls
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last Affected
0
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "last_affected":  "0"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StandaloneSingleVersion"
        }
    ]
}

Affected versions

Other
0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-5260.json"