CVE-2025-12970
highpriority · track · 0EPSS 0.011 · 65 %ileDEEURUUSEPSS · scored 2026-10-27
The extract_name function in Fluent Bit in_docker input plugin copies container names into a fixed size stack buffer without validating length. An attacker who can create containers or control container names, can supply a long name that overflows the buffer, leading to process crash or arbitrary code execution.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (7)
Products and version ranges known to be affected.
advisories (2)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2025-2670Fluent Bit: Mehrere SchwachstellenDeutsch2025-11-24csaf · cert_bundDE
Ein entfernter anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in Fluent Bit ausnutzen, um Sicherheitsmaßnahmen zu umgehen, beliebigen Code auszuführen, einen Denial-of-Service-Zustand zu verursachen, Daten zu manipulieren und vertrauliche Informationen offenzulegen.
- BIT-fluent-bit-2025-12970CVE-2025-129702025-12-01vendor · osvUS
The extract_name function in Fluent Bit in_docker input plugin copies container names into a fixed size stack buffer without validating length. An attacker who can create containers or control container names, can supply a long name that overflows the buffer, leading to process crash or arbitrary code execution.
also known as (4)
Other names and identifiers for this entity.
sources
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references (7)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/cve-2025-12970cnnvd
- https://fluentbit.io/announcements/v4.1.0/cnnvd
- https://github.com/fluent/fluent-bit/releasesPatchcnnvd
- https://fluentbit.io/blog/2025/10/28/security-vulnerabilities-addressed-in-fluent-bit-v4.1-and-backported-to-v4.0/enisa_euvd
- https://www.oligo.security/blog/critical-vulnerabilities-in-fluent-bit-expose-cloud-environments-to-remote-takeoverenisa_euvd
- https://fluentbit.io/blog/2025/10/28/security-vulnerabilities-addressed-in-fluent-bit-v4.1-and-backported-to-v4.0/nvd
- https://www.oligo.security/blog/critical-vulnerabilities-in-fluent-bit-expose-cloud-environments-to-remote-takeovernvd
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