Fluent Bit out_file plugin does not properly sanitize tag values when deriving output file names. When the File option is omitted, the plugin uses untrusted tag input to construct file paths. This allows attackers with network access to craft tags containing path traversal sequences that cause Fluent Bit to write files outside the intended output directory.
Metrics
Affected Vendors & Products
References
History
Fri, 28 Nov 2025 18:30:00 +0000
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Fri, 28 Nov 2025 18:00:00 +0000
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Fri, 28 Nov 2025 15:30:00 +0000
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Treasuredata
Treasuredata fluent Bit |
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| Weaknesses | CWE-22 | |
| CPEs | cpe:2.3:a:treasuredata:fluent_bit:4.1.0:*:*:*:*:*:*:* | |
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Treasuredata
Treasuredata fluent Bit |
Thu, 27 Nov 2025 10:00:00 +0000
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Fluentbit
Fluentbit fluent Bit |
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| Vendors & Products |
Fluentbit
Fluentbit fluent Bit |
Mon, 24 Nov 2025 19:15:00 +0000
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| Metrics |
cvssV3_1
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Mon, 24 Nov 2025 14:45:00 +0000
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| Description | Fluent Bit out_file plugin does not properly sanitize tag values when deriving output file names. When the File option is omitted, the plugin uses untrusted tag input to construct file paths. This allows attackers with network access to craft tags containing path traversal sequences that cause Fluent Bit to write files outside the intended output directory. | |
| Title | CVE-2025-12972 | |
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Status: PUBLISHED
Assigner: certcc
Published: 2025-11-24T14:40:36.275Z
Updated: 2025-11-28T17:45:25.345Z
Reserved: 2025-11-10T18:00:22.449Z
Link: CVE-2025-12972
Updated: 2025-11-24T19:08:51.064Z
Status : Modified
Published: 2025-11-24T15:15:46.627
Modified: 2025-11-28T18:15:46.400
Link: CVE-2025-12972
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