CVE-2026-32770 | parse-community parse-server up to 8.6.42/9.6.0-alpha.18 Regular Expression uncaught exception (GHSA-827p-g5x5-h86c)

VDB-351619 · CVE-2026-32770 · GHSA-827P-G5X5-H86C PARSE-COMMUNITY PARSE-SERVER UP TO 8.6.42/9.6.0-ALPHA.18 REGULAR EXPRESSION UNCAUGHT EXCEPTION HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 4.7 $0-$5k 0.65+ Summaryinfo A vulnerability identified as problematic has been detected in parse-community parse-server up to 8.6.42/9.6.0-alpha.18. This issue affects some unknown processing of the component Regular Expression Handler. This manipulation causes uncaught exception. The identification of this vulnerability is CVE-2026-32770. It is possible to initiate the attack remotely. There is no exploit available. You should upgrade the affected component. Detailsinfo A vulnerability was found in parse-community parse-server up to 8.6.42/9.6.0-alpha.18. It has been declared as problematic. Affected by this vulnerability is some unknown functionality of the component Regular Expression Handler. The manipulation with an unknown input leads to a uncaught exception vulnerability. The CWE definition for the vulnerability is CWE-248. An exception is thrown from a function, but it is not caught. As an impact it is known to affect availability. The summary by CVE is: 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. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-32770 since 03/13/2026. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. Upgrading to version 8.6.43 or 9.6.0-alpha.19 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version. Productinfo Vendor parse-community Name parse-server Version 8.6.0 8.6.1 8.6.2 8.6.3 8.6.4 8.6.5 8.6.6 8.6.7 8.6.8 8.6.9 8.6.10 8.6.11 8.6.12 8.6.13 8.6.14 8.6.15 8.6.16 8.6.17 8.6.18 8.6.19 8.6.20 8.6.21 8.6.22 8.6.23 8.6.24 8.6.25 8.6.26 8.6.27 8.6.28 8.6.29 8.6.30 8.6.31 8.6.32 8.6.33 8.6.34 8.6.35 8.6.36 8.6.37 8.6.38 8.6.39 8.6.40 8.6.41 8.6.42 9.6.0-alpha.0 9.6.0-alpha.1 9.6.0-alpha.2 9.6.0-alpha.3 9.6.0-alpha.4 9.6.0-alpha.5 9.6.0-alpha.6 9.6.0-alpha.7 9.6.0-alpha.8 9.6.0-alpha.9 9.6.0-alpha.10 9.6.0-alpha.11 9.6.0-alpha.12 9.6.0-alpha.13 9.6.0-alpha.14 9.6.0-alpha.15 9.6.0-alpha.16 9.6.0-alpha.17 9.6.0-alpha.18 Website Product: https://github.com/parse-community/parse-server/ CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 4.8 VulDB Meta Temp Score: 4.7 VulDB Base Score: 3.7 VulDB Temp Score: 3.6 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 5.9 CNA Vector (GitHub_M): 🔒 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Uncaught exception CWE: CWE-248 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: parse-server 8.6.43/9.6.0-alpha.19 Patch: github.com Timelineinfo 03/13/2026 CVE reserved 03/18/2026 +5 days Advisory disclosed 03/18/2026 +0 days VulDB entry created 03/18/2026 +0 days VulDB entry last update Sourcesinfo Product: github.com Advisory: GHSA-827p-g5x5-h86c Status: Confirmed CVE: CVE-2026-32770 (🔒) GCVE (CVE): GCVE-0-2026-32770 GCVE (VulDB): GCVE-100-351619 Entryinfo Created: 03/18/2026 23:49 Changes: 03/18/2026 23:49 (65) Complete: 🔍 Cache ID: 99:467:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸