Fluent Bit Memory Corruption Vulnerability
Priority HIGH 71CWE-122Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-122 and the CVSS impact.
Summary
A memory corruption vulnerability in Fluent Bit versions 2.0.7 thru 3.0.3. This issue lies in the embedded http server’s parsing of trace requests and may result in denial of service conditions, information disclosure, or remote code execution.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.27043 98th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Fluent Bit | Fluent Bit | 2.0.7 – 3.0.3 | — | No fix listed | CNA |
- Fluent Bit VendorFluent Bit Affected 2.0.7 – 3.0.3 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2024-4323
- 2026-10-03 Alias added: GHSA-68mr-468g-4wmg
References
More FluentBit Fluent Bit vulnerabilities
- TI-2024-17419 fluent-bit 2.2.2 contains a Use-After-Free vulnerability in /fluent-bit/plugins/custom_calyptia/calyptia.c. CVSS 3.1HIGH 7.5
- TI-2024-15728 In Fluent Bit 2.1.8 through 2.2.1, a NULL pointer dereference can be caused via an… CVSS 3.1HIGH 7.5
- TI-2021-21547 An issue was discovered in Treasure Data Fluent Bit 1.7.1, a wrong variable is used to… CVSS 3.1HIGH 7.8
- TI-2021-21546 An issue was discovered in Treasure Data Fluent Bit 1.7.1, erroneous parsing in… CVSS 3.1HIGH 7.8
- TI-2025-21098 An issue in fluent-bit v.3.7.2 allows a local attacker to cause a denial of service via… CVSS 3.1MEDIUM 5.5
- TI-2025-21097 An issue in fluent-bit v.3.7.2 allows a local attacker to cause a denial of service via the function consume_event. CVSS 3.1MEDIUM 5.5
Sources
- CVE-2024-4323 · CVE Program
- CVE-2024-4323 · NVD
- FIRST EPSS
- GHSA-68mr-468g-4wmg · GitHub Advisory Database · CC BY 4.0
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