Vulnerability · CVE-2026-40162
Bugsink is a self-hosted error tracking tool.
Published Apr 10, 2026 · catalog updated Jun 17, 2026 · Bugsink is a self-hosted
Check if you run it
No confirmed exploitation is on record for CVE-2026-40162. EPSS is 0.51%. Act only if a listed version of Bugsink is a self-hosted is installed.
Gaps on this record
- The stored product name is a package slug. The name on this page is taken from the title (Bugsink is a self-hosted).
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
- Severity
- High7.1
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.51%
- Remediation
- Advisory link
- Affected products
- cpe bugsink/bugsink
Bugsink is a self-hosted error tracking tool. In 2.1.0, an authenticated file write vulnerability was identified in Bugsink 2.1.0 in the artifact bundle assembly flow. A user with a valid authentication token could cause the application to write attacker-controlled content to a filesystem location writable by the Bugsink process. This vulnerability is fixed in 2.1.1.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- cpe bugsink/bugsink2.1.0
How to fix CVE-2026-40162
Recommended remediation
A patch or advisory reference is linked. Open the original publisher for availability by product version.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2026-40162. EPSS is 0.51%. Act only if a listed version of Bugsink is a self-hosted is installed.
Which versions are affected?
Compare what you have installed with 2.1.0. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
CWE-20: Improper Input Validation. EPSS 0.51%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
Timeline
Detection, updates, and resolution for this record.
Apr 10, 2026 · NIST NVD
Detected
Bugsink is a self-hosted error tracking tool. In 2.1.0, an authenticated file write vulnerability was identified in Bugsink 2.1.0 in the artifact bundle assembly flow. A user with a valid authentication token could cause the application to write attacker-controlled content to a filesystem location writable by the Bugsink process. This vulnerability is fixed in 2.1.1.
Jun 17, 2026 · NIST NVD
Updated
Bugsink is a self-hosted error tracking tool. In 2.1.0, an authenticated file write vulnerability was identified in Bugsink 2.1.0 in the artifact bundle assembly flow. A user with a valid authentication token could cause the application to write attacker-controlled content to a filesystem location writable by the Bugsink process. This vulnerability is fixed in 2.1.1.
Sources
- CVE.orgVulnerability recordCVE-2026-40162
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2026-40162
30-day exploitation probability 0.5%
first.org - NIST NVDVulnerability recordCVE-2026-40162
Bugsink is a self-hosted error tracking tool. In 2.1.0, an authenticated file write vulnerability was identified in Bugsink 2.1.0 in the artifact bundle assembly flow. A user with a valid authentication token could cause the application to write attacker-controlled content to a f
nvd.nist.gov
References
Freshness
Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.