Vulnerability Database · OSS-Fuzz · Package report
fluent-bit: vulnerability history, versions and safety
fluent-bit is a package in the OSS-Fuzz ecosystem. Vulert records 81 vulnerabilities for it across 120 releases, from Jun 2020 to Sep 2026. Each vulnerability names the versions it affects, the fixed version to move to, and a workaround where no fix has been published.
No patched version yet — these are the ones to plan around.
See the unfixed vulnerabilities →No published version shipped hostile code.
Vulert verdict on fluent-bit i
Updated on 23 Oct 2026
Careful: 13 of the 81 vulnerabilities Vulert records for this package have no fix yet. Plan around those, or apply the workaround listed for each. The rest have a fixed version to move to.
What to do: Plan around the 13 vulnerabilities with no published fix: each lists the affected range and any workaround that reduces exposure. No fix yet: Vulert alerts you the moment one is published. Monitor it with Vulert →
- Vulnerabilities on record 81 over 6 years · 2 in the last year i
- Latest disclosure 06 Sep 2026 i
- Highest CVSS n/a i
- With no published fix 13 i
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01 Versions
Which versions are affected
Every version Vulert holds for fluent-bit, newest first, with the vulnerabilities that name it. A version with a count of zero has no recorded vulnerabilities; open a version to see the vulnerabilities it is exposed to.
Newest 120 of 172 versions on record. Severity counts are the vulnerabilities recorded against that exact release.
02 Disclosure history
How often vulnerabilities are recorded
Counted by the year Vulert recorded each vulnerability — the same date the table below shows as disclosed. 2 of the 81 were recorded in the last 12 months.
03 Vulnerabilities
Recorded vulnerabilities for fluent-bit
| Vulnerability | Severity | Fixed version ↓ | Disclosed ↓ |
|---|---|---|---|
| Heap-buffer-overflow in onig_node_str_cat in fluent-bit | N/A medium | 5ddb06fe4273bdec0171bc30877959c7bef666c2 | 29 Sep 2022 |
| Heap Buffer Overflow Vulnerability in Fluent Bit | N/A high | d6e65fb019a28ec2b16221e2753d4e3284e06ad0 | 03 Jan 2026 |
| Heap-double-free vulnerability in fluent-bit | N/A high | cee783e53b96e445983a667ba51da087df14e472 | 19 Mar 2022 |
| Segv on unknown address in flb_config_map_properties_check in fluent-bit | N/A unrated | cee783e53b96e445983a667ba51da087df14e472 | 19 Mar 2022 |
| Heap-double-free vulnerability in fluent-bit | N/A high | af7ef37d6f0c61a79a8bd66f603273245198e069 | 19 Mar 2022 |
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Updated: 23/Oct/2026 · Vulnerabilities in our DB: 524315
