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Vulnerabilities / CVE-2026-34877

critical

CVE-2026-34877

An issue was discovered in Mbed TLS versions from 2.19.0 up to 3.6.5, ...

Published Modified CWE 250, 502
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

Julia9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Trivy's own label is CRITICAL. Rated critical by Julia.

Description

An issue was discovered in Mbed TLS versions from 2.19.0 up to 3.6.5, Mbed TLS 4.0.0. Insufficient protection of serialized SSL context or session structures allows an attacker who can modify the serialized structures to induce memory corruption, leading to arbitrary code execution. This is caused by Incorrect Use of Privileged APIs.

Affected packages and fixed versions

SourcePackageFixed in
julia::Julia Ecosystem Security AdvisoriesMbedTLS_jllno fix listed
debian 12mbedtlsno fix listed
debian 13mbedtlsno fix listed
debian 14mbedtls3.6.6-0.1
echombedtls3.6.6-0.1+e1
rapidfort debian 12mbedtls, rf-mbedtls0:3.6.6-0.1
rapidfort debian 13mbedtls, rf-mbedtls0:3.6.6-0.1
root.io debian 12rootio-mbedtlsno fix listed
Show all 10 entries from 8 sources
SourcePackageFixed in
julia::Julia Ecosystem Security AdvisoriesMbedTLS_jllno fix listed
debian 12mbedtlsno fix listed
debian 13mbedtlsno fix listed
debian 14mbedtls3.6.6-0.1
echombedtls3.6.6-0.1+e1
rapidfort debian 12mbedtls0:3.6.6-0.1
rapidfort debian 12rf-mbedtls0:3.6.6-0.1
rapidfort debian 13mbedtls0:3.6.6-0.1
rapidfort debian 13rf-mbedtls0:3.6.6-0.1
root.io debian 12rootio-mbedtlsno fix listed

References

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.