CVE-2021-37861
CVE-2021-37861 is a medium-severity vulnerability in Mattermost with a CVSS 3.x base score of 5.8. 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: Medium (CVSS 3.x base score 5.8)
- CVSS v2: 5.0
- EPSS exploit prediction: 1% (55th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-532
- Affected product: Mattermost
- Published:
- Last modified:
Description
Mattermost 6.0.2 and earlier fails to sufficiently sanitize user's password in audit logs when user creation fails.
Frequently asked questions
- What is CVE-2021-37861?
- Mattermost 6.0.2 and earlier fails to sufficiently sanitize user's password in audit logs when user creation fails.
- How severe is CVE-2021-37861?
- CVE-2021-37861 has a CVSS 3.x base score of 5.8, rated medium severity. It is exploitable over network with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
- Is CVE-2021-37861 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-37861?
- CVE-2021-37861 affects Mattermost. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-37861?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-37861 published?
- CVE-2021-37861 was published on 2021-12-09 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*
More vulnerabilities in Mattermost
- CVE-2019-20851 — Critical (CVSS 9.1): An issue was discovered in Mattermost Mobile Apps before 1.26.0. An attacker can use directory traversal with the Video…
- CVE-2024-39777 — High (CVSS 8.7): Mattermost versions 9.9.x <= 9.9.0, 9.5.x <= 9.5.6, 9.7.x <= 9.7.5 and 9.8.x <= 9.8.1 fail to disallow unsolicited…
- CVE-2024-39274 — High (CVSS 8.7): Mattermost versions 9.9.x <= 9.9.0, 9.5.x <= 9.5.6, 9.7.x <= 9.7.5 and 9.8.x <= 9.8.1 fail to properly validate…
- CVE-2024-39830 — High (CVSS 8.1): Mattermost versions 9.8.x <= 9.8.0, 9.7.x <= 9.7.4, 9.6.x <= 9.6.2 and 9.5.x <= 9.5.5, when shared channels are…
- CVE-2023-3615 — High (CVSS 8.1): Mattermost iOS app fails to properly validate the server certificate while initializing the TLS connection allowing a…
- CVE-2020-13891 — High (CVSS 7.5): An issue was discovered in Mattermost Mobile Apps before 1.31.2 on iOS. Unintended third-party servers could sometimes…
All CVEs affecting Mattermost →
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 →