EUVD-2026-81667
GHSA-jgm3-qmp2-c4p7
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Remote, unauthenticated, low-complexity event-loop-blocking DoS on a public GraphQL query with availability-only impact; SQLite-only gating is a deployment condition, not a base metric.
Primary rating from Vendor (GitHub_M).
CVSS VectorVendor: GitHub_M
Lifecycle Timeline
5DescriptionCVE.org
Vendure is an open-source headless commerce platform. Prior to 3.6.5, the public Shop GraphQL API allows an unauthenticated caller to supply a catastrophically backtracking pattern through StringOperators.regex. packages/core/src/service/helpers/list-query-builder/parse-filter-params.ts passes the raw pattern to the REGEXP implementation registered by packages/core/src/service/helpers/list-query-builder/list-query-builder.ts, and better-sqlite3 and sqljs evaluate it synchronously in the Node.js event loop. ShopProductsResolver.products is publicly reachable, so one nested-quantifier pattern can block request processing and make the storefront and admin API unavailable, while repeated requests can sustain denial of service. PostgreSQL and MySQL or MariaDB deployments do not execute this regular expression in the Node.js event loop. This issue is fixed in version 3.6.5.
Articles & Coverage 1
AnalysisAI
Unauthenticated denial of service in Vendure (open-source headless commerce platform) versions up to and including 3.6.4 lets a remote attacker freeze the Node.js event loop by supplying a catastrophically backtracking regular expression to the publicly reachable Shop GraphQL products query through StringOperators.regex, rendering both the storefront and admin API unavailable; repeated requests can sustain the outage. The flaw is only reachable on instances running the better-sqlite3 or sqljs SQLite drivers, which register a synchronous JavaScript REGEXP user-defined function on the event loop, whereas PostgreSQL and MySQL/MariaDB deployments push the pattern to the database engine and are unaffected. …
Unlock full vulnerability intelligence
- Risk assessment & exploitation conditions
- Attack chain visualization
- Remediation with exact patch versions
- Threat intelligence from 22 sources
- Personal watchlist & email alerts
Free forever · No credit card required
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitable only when the Vendure instance runs on the better-sqlite3 or sqljs database driver, which register a synchronous JavaScript REGEXP UDF evaluated on the Node.js event loop; deployments on PostgreSQL or MySQL/MariaDB are NOT exploitable because the pattern is delegated to the database engine. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 vector (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H, base 7.5) describes a clean unauthenticated, network-reachable, low-complexity availability-only impact, which matches the description: the ShopProductsResolver.products query carries no @Allow decorator and is publicly reachable, and a single nested-quantifier pattern via StringOperators.regex blocks the Node.js event loop. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Upgrade to Vendure 3.6.5, which adds an assertSafeRegexFilter() check that rejects regex filter patterns with nested unbounded quantifiers (star height >= 2) and patterns exceeding the maximum permitted length, returning a UserInputError instead of passing them to the SQLite REGEXP UDF; the release is at https://github.com/vendurehq/vendure/releases/tag/v3.6.5 and the fix commit is https://github.com/vendurehq/vendure/commit/f74cbbb0b9a50b5b0131822835fe7ee9b71b42c9. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all Vendure deployments and identify which are running the better-sqlite3 or sqljs SQLite drivers on versions 3.6.4 or earlier; for those instances, treat them as exposed and initiate the upgrade to the vendor-referenced fix version 3.6.5 as the highest-priority change, while simultaneously applying an edge or WAF rule that rejects or rate-limits GraphQL products queries containing StringOperators.regex or obviously pathological regular-expression patterns and enforcing request timeouts and per-client rate limits on the public Shop GraphQL endpoint. …
Sign in for detailed remediation steps and compensating controls.
Threat intelligence, references, and detailed analysis are available after sign-in.
More in PostgreSQL
View allPostgreSQL libpq functions PQescapeLiteral(), PQescapeIdentifier(), PQescapeString(), and PQescapeStringConn() improperl
An issue was discovered in Appsmith before 1.52. Rated critical severity (CVSS 9.8), this vulnerability is remotely expl
Argument injection vulnerability in PostgreSQL 9.2.x before 9.2.4, 9.1.x before 9.1.9, and 9.0.x before 9.0.13 allows re
Unauthenticated arbitrary file write in Splunk Enterprise (below 10.2.4 and 10.0.7) and Splunk Cloud Platform (below 10.
Unauthenticated SQL injection in Sangoma Switchvox SMB Edition 8.3 (build 104997) lets remote attackers execute arbitrar
PostgreSQL versions before 9.2.22, 9.3.18, 9.4.13, 9.5.8 and 9.6.4 are vulnerable to incorrect authentication flaw allow
The build_tablename function in pgsql.c in the PostgreSQL (aka pgsql) extension in PHP through 5.6.7 does not validate t
A vulnerability in the h2oai/h2o-3 REST API versions 3.46.0.4 allows unauthenticated remote attackers to execute arbitra
In PostgreSQL 9.3 through 11.2, the "COPY TO/FROM PROGRAM" function allows superusers and users in the 'pg_execute_serve
Unauthenticated SQL injection in Vendure Shop API allows remote attackers to execute arbitrary SQL commands against the
Parse Server is an open source http web server backend. Rated critical severity (CVSS 10.0), this vulnerability is remot
Hard-coded default PostgreSQL credentials shipped in the docker-compose.yaml of langgenius Dify through version 1.5.1 al
Same technique Denial Of Service
View allShare
External POC / Exploit Code
Leaving vuln.today