CVE-2024-23722
In Fluent Bit 2.1.8 through 2.2.1, a NULL pointer dereference can be caused via an invalid HTTP...
In Fluent Bit 2.1.8 through 2.2.1, a NULL pointer dereference can be caused via an invalid HTTP payload with the content type of x-www-form-urlencoded. It crashes and does not restart. This could result in logs not being delivered properly.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
7.5
In Fluent Bit 2.1.8 through 2.2.1, a NULL pointer dereference can be caused via an invalid HTTP payload with the content type of x-www-form-urlencoded. It crashes and does not restart. This could result in logs not being delivered properly.
- Record
CVE-2024-23722- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-476
- Updated
- 2026-11-02
EUVDEUVD-2024-21183
7.5
In Fluent Bit 2.1.8 through 2.2.1, a NULL pointer dereference can be caused via an invalid HTTP payload with the content type of x-www-form-urlencoded. It crashes and does not restart. This could result in logs not being delivered properly.
- Record
EUVD-2024-21183- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-7x4x-j7vx-3p29
7.5
In Fluent Bit 2.1.8 through 2.2.1, a NULL pointer dereference can be caused via an invalid HTTP...
In Fluent Bit 2.1.8 through 2.2.1, a NULL pointer dereference can be caused via an invalid HTTP payload with the content type of x-www-form-urlencoded. It crashes and does not restart. This could result in logs not being delivered properly.
- Record
GHSA-7x4x-j7vx-3p29- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-476
- Updated
- 2026-11-02
NVD
7.5
In Fluent Bit 2.1.8 through 2.2.1, a NULL pointer dereference can be caused via an invalid HTTP payload with the content type of x-www-form-urlencoded. It crashes and does not restart. This could result in logs not being delivered properly.
- Record
CVE-2024-23722- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-476
- Updated
- 2026-11-02
OSV
7.5
In Fluent Bit 2.1.8 through 2.2.1, a NULL pointer dereference can be caused via an invalid HTTP payload with the content type of x-www-form-urlencoded. It crashes and does not restart. This could result in logs not being delivered properly.
- Record
CVE-2024-23722- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2024-23722
7.5
In Fluent Bit 2.1.8 through 2.2.1, a NULL pointer dereference can be caused via an invalid HTTP payload with the content type of x-www-form-urlencoded. It crashes and does not restart. This could result in logs not being delivered properly.
- Record
UBUNTU-CVE-2024-23722- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVAZL-37083 No score
CVE-2024-23722 affecting package fluent-bit for versions less than 2.2.2-1
In Fluent Bit 2.1.8 through 2.2.1, a NULL pointer dereference can be caused via an invalid HTTP payload with the content type of x-www-form-urlencoded. It crashes and does not restart. This could result in logs not being delivered properly.
- Record
AZL-37083- Updated
- 2026-11-02
OSVBIT-fluent-bit-2024-23722 No score
In Fluent Bit 2.1.8 through 2.2.1, a NULL pointer dereference can be caused via an invalid HTTP payload with the content type of x-www-form-urlencoded. It crashes and does not restart. This could result in logs not being delivered properly.
- Record
BIT-fluent-bit-2024-23722- Updated
- 2026-11-02
OSVUSN-7250-1 No score
netdata vulnerabilities
It was discovered that Netdata incorrectly handled parsing JSON input, which could lead to a JSON injection. An attacker could possibly use this issue to execute arbitrary code. This issue only affected Ubuntu 18.04 LTS. (CVE-2018-18836)
It was discovered that Netdata incorrectly handled parsing HTTP headers, which could lead to a HTTP header injection. An attacker could possibly use this issue to cause a denial of service or leak sensitive information. This issue only affected Ubuntu 18.04 LTS. (CVE-2018-18837)
It was discovered that Netdata incorrectly handled parsing URLs, which could lead to a log injection. An attacker could possibly use this issue to consume system resources, resulting in a denial of service. This issue only affected Ubuntu 18.04 LTS. (CVE-2018-18838)
It was discovered Netdata improperly authenticated API keys. An attacker could possibly use this issue to leak sensitive information or execute arbitrary code. This issue only affected Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2023-22497)
It was discovered Fluent Bit, vendored in Netdata, incorrectly handled parsing HTTP payloads. An attacker could possibly use this issue to disrupt logging. This issue only affected Ubuntu 24.10. (CVE-2024-23722)
It was discovered that WebAssembly Micro Runtime, vendored in Netdata, incorrectly handled memory. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 24.10. (CVE-2024-34250, CVE-2024-34251)
- Record
USN-7250-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
fluent-bitAzure Linux:2 |
before 2.2.2-1 | 2.2.2-1 |
fluent-bitBitnami |
2.1.8 up to 2.2.2 | 2.2.2 |
netdataUbuntu:Pro:18.04:LTS From an advisory covering 5 CVEs |
before 1.9.0+dfsg-1ubuntu0.1~esm1, plus listed versions 1.7.0+dfsg-11.8.0+dfsg-11.9.0+dfsg-1 |
1.9.0+dfsg-1ubuntu0.1~esm1 |
netdataUbuntu:Pro:20.04:LTS From an advisory covering 5 CVEs |
before 1.19.0-3ubuntu1+esm1, plus listed versions 1.16.1-21.19.0-3ubuntu1 |
1.19.0-3ubuntu1+esm1 |
netdataUbuntu:Pro:22.04:LTS From an advisory covering 5 CVEs |
before 1.33.1-1ubuntu1+esm1, plus listed versions 1.29.3-41.31.0-41.33.1-1ubuntu1 |
1.33.1-1ubuntu1+esm1 |
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | alexcote1/CVE-2024-23722-poc | 2024-03-25 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| affected | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2024-23722 is a high vulnerability (CVSS 7.5) in Fluent Bit, published March 26, 2024. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 0.95%, the 61st percentile. Fixed in fluent-bit 2.2.2-1.
References
github.com/fluent/fluent-bit/compare/v2.2.1...v2.2.2
medium.com/%40adurands82/fluent-bit-dos-vulnerability-cve-2024-23722-4e3e74af9d00
nvd.nist.gov/vuln/detail/CVE-2024-23722
github.com/advisories/GHSA-7x4x-j7vx-3p29
github.com/CVEProject/cvelistV5/tree/main/cves/2024/23xxx/CVE-2024-23722.json
ubuntu.com/security/CVE-2024-23722