CVE-2026-32770 (GCVE-0-2026-32770)
Vulnerability from cvelistv5 – Published: 2026-03-18 21:37 – Updated: 2026-03-19 14:21
VLAI
EPSS
VEX
Title
Parse Server: LiveQuery subscription with invalid regular expression crashes server
Summary
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.6.0-alpha.19 and 8.6.43, a remote attacker can crash the Parse Server by subscribing to a LiveQuery with an invalid regular expression pattern. The server process terminates when the invalid pattern reaches the regex engine during subscription matching, causing denial of service for all connected clients. The fix in 9.6.0-alpha.19 and 8.6.43 validates regular expression patterns at subscription time, rejecting invalid patterns before they are stored. Additionally, a defense-in-depth try-catch prevents any subscription matching error from crashing the server process. As a workaround, disable LiveQuery if it is not needed.
Severity
5.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-19 14:21 UTC
CWE
- CWE-248 - Uncaught Exception
Assigner
GitHub_M
CNA
References
3 references
| URL | Tags |
|---|---|
| https://github.com/parse-community/parse-server/s… | x_refsource_CONFIRM |
| https://github.com/parse-community/parse-server/p… | x_refsource_MISC |
| https://github.com/parse-community/parse-server/p… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| parse-community | parse-server |
Affected:
>= 9.0.0, < 9.6.0-alpha.19
Affected: < 8.6.43 |
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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