CVE-2023-0440 json
Observable Discrepancy in healthchecks/healthchecks
published 2023-01-23 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-12494
- cvss
- 5.3
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 47%
- public exploits
- 0
- none known
Summary
Observable Discrepancy in GitHub repository healthchecks/healthchecks prior to v2.6.
Patch / fix
- healthchecks healthchecks/healthchecks v2.6
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 19 mo ago
Exploit prediction
0.58% chance of exploitation in the next 30 days, higher than 47% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- huntr.dev https://huntr.dev/bounties/208a096f-7986-4eed-8629-b7285348a686 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 5.3 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
| NVD | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
Affected products
- healthchecks healthchecks/healthchecks
Classification
- Weakness
-
- CWE-203 Observable Discrepancy
References
-
github.com
/healthchecks/healthchecks/commit/359edbd2709e27b60687061a32e19322bc971c1f
patch, third-party-advisory
-
huntr.dev
/bounties/208a096f-7986-4eed-8629-b7285348a686
exploit, issue-tracking, patch, third-party-advisory
Sources
- CVE List CVE-2023-0440
- NVD CVE-2023-0440
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.