CVE-2026-25834

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Source
https://cve.org/CVERecord?id=CVE-2026-25834
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-25834.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-25834
Downstream
Related
Published
2026-04-01T00:00:00Z
Modified
2026-07-15T02:18:07.378278654Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L CVSS Calculator
Summary
[none]
Details

Mbed TLS v3.3.0 up to 3.6.5 and 4.0.0 allows Algorithm Downgrade.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/25xxx/CVE-2026-25834.json",
    "cna_assigner": "mitre"
}
References

Affected packages

Git / github.com/mbed-tls/mbedtls

Affected ranges

Type
GIT
Repo
https://github.com/mbed-tls/mbedtls
Events
Introduced
8c89224991adff88d53cd380f42a2baa36f91454
Fixed
0bebf8b8c7f07abe3571ded48a11aa907a1ffb20
Introduced
ec4044008d2d069da38288bc76b0fee34ec78646
Last affected
ec4044008d2d069da38288bc76b0fee34ec78646
Database specific 
{
    "cpe": [
        "cpe:2.3:a:trustedfirmware:mbed_tls:*:*:*:*:*:*:*:*",
        "cpe:2.3:a:trustedfirmware:mbed_tls:4.0.0:*:*:*:*:*:*:*"
    ],
    "source": [
        "CPE_RANGE",
        "CPE_STRING"
    ],
    "extracted_events": [
        {
            "introduced": "3.3.0"
        },
        {
            "fixed": "3.6.6"
        },
        {
            "introduced": "4.0.0"
        },
        {
            "last_affected": "4.0.0"
        }
    ]
}

Affected versions

4.*
4.0.0
mbedtls-4.*
mbedtls-4.0.0
v4.*
v4.0.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-25834.json"