CVE-2021-22133
CVE-2021-22133 is a low-severity vulnerability in Elastic Apm Agent with a CVSS 3.x base score of 2.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-532.
Key facts
- Severity: Low (CVSS 3.x base score 2.4)
- CVSS v2: 2.7
- EPSS exploit prediction: 1% (40th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-532
- Affected product: Elastic Apm Agent
- Published:
- Last modified:
Description
The Elastic APM agent for Go versions before 1.11.0 can leak sensitive HTTP header information when logging the details during an application panic. Normally, the APM agent will sanitize sensitive HTTP header details before sending the information to the APM server. During an application panic it is possible the headers will not be sanitized before being sent.
Frequently asked questions
- What is CVE-2021-22133?
- The Elastic APM agent for Go versions before 1.11.0 can leak sensitive HTTP header information when logging the details during an application panic. Normally, the APM agent will sanitize sensitive HTTP header details before sending the information to the APM server. During an application panic it is possible the headers will not be sanitized before being sent.
- How severe is CVE-2021-22133?
- CVE-2021-22133 has a CVSS 3.x base score of 2.4, rated low severity. It is exploitable over an adjacent network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
- Is CVE-2021-22133 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-22133?
- CVE-2021-22133 affects Elastic Apm Agent. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-22133?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-22133 published?
- CVE-2021-22133 was published on 2021-02-10 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:elastic:apm_agent:*:*:*:*:*:go:*:*
More vulnerabilities in Elastic Apm Agent
- CVE-2021-37941 — High (CVSS 7.8): A local privilege escalation issue was found with the APM Java agent, where a user on the system could attach a…
- CVE-2019-7617 — High (CVSS 7.2): When the Elastic APM agent for Python versions before 5.1.0 is run as a CGI script, there is a variable name clash flaw…
All CVEs affecting Elastic Apm Agent →
Other CWE-532 (Insertion of Sensitive Information into Log File) vulnerabilities
- CVE-2022-36407 — Critical (CVSS 9.9): Insertion of Sensitive Information into Log File vulnerability in Hitachi Virtual Storage Platform, Hitachi Virtual…
- CVE-2023-40029 — Critical (CVSS 9.9): Argo CD is a declarative continuous deployment for Kubernetes. Argo CD Cluster secrets might be managed declaratively…
- CVE-2021-32724 — Critical (CVSS 9.9): check-spelling is a github action which provides CI spell checking. In affected versions and for a repository with the…
- CVE-2026-49200 — Critical (CVSS 9.8): The acer_cgi.log file in the device firmware is accessible without authentication via the web interface. This file…
- CVE-2026-22778 — Critical (CVSS 9.8): vLLM is an inference and serving engine for large language models (LLMs). From 0.8.3 to before 0.14.1, when an invalid…
- CVE-2025-11008 — Critical (CVSS 9.8): The CE21 Suite plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and…
Browse all CWE-532 (Insertion of Sensitive Information into Log File) vulnerabilities →