CVE-2026-6636 | p2r3 convert up to 6998584ace3e11db66dff0b423612a5cf91de75b API buildCache.js Bun.serve pathname path traversal

VDB-358270 · SUBMIT #793436 · CVE-2026-6636 P2R3 CONVERT UP TO 6998584ACE3E11DB66DFF0B423612A5CF91DE75B API BUILDCACHE.JS BUN.SERVE PATHNAME PATH TRAVERSAL HISTORYDIFFRELATEJSONXMLCTI Summaryinfo A vulnerability labeled as critical has been found in p2r3 convert up to 6998584ace3e11db66dff0b423612a5cf91de75b. Affected by this vulnerability is the function Bun.serve of the file buildCache.js of the component API. Executing a manipulation of the argument pathname can lead to path traversal. This vulnerability is registered as CVE-2026-6636. It is possible to launch the attack remotely. Furthermore, an exploit is available. This product takes the approach of rolling releases to provide continious delivery. Therefore, version details for affected and updated releases are not available. The vendor was contacted early about this disclosure but did not respond in any way. Detailsinfo A vulnerability was found in p2r3 convert up to 6998584ace3e11db66dff0b423612a5cf91de75b. It has been declared as problematic. This vulnerability affects the function Bun.serve of the file buildCache.js of the component API. The manipulation of the argument pathname with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect confidentiality. The advisory is available at github.com. This vulnerability was named CVE-2026-6636. The exploitation appears to be easy. The attack can be initiated remotely. Technical details and also a public exploit are known. This vulnerability is assigned to T1006 by the MITRE ATT&CK project. It is possible to download the exploit at github.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way. There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Productinfo Vendor p2r3 Name convert Version 6998584ace3e11db66dff0b423612a5cf91de75b CPE 2.3info 🔒 CPE 2.2info 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 4.3 VulDB Meta Temp Score: 3.9 VulDB Base Score: 4.3 VulDB Temp Score: 3.9 VulDB Vector: 🔒 VulDB Reliability: 🔍 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: Path traversal CWE: CWE-22 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Access: Public Status: Proof-of-Concept Download: 🔒 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: no mitigation known Status: 🔍 0-Day Time: 🔒 Timelineinfo 04/19/2026 Advisory disclosed 04/19/2026 +0 days VulDB entry created 04/19/2026 +0 days VulDB entry last update Sourcesinfo Advisory: github.com Status: Not defined CVE: CVE-2026-6636 (🔒) GCVE (CVE): GCVE-0-2026-6636 GCVE (VulDB): GCVE-100-358270 scip Labs: https://www.scip.ch/en/?labs.20161013 Entryinfo Created: 04/19/2026 21:28 Changes: 04/19/2026 21:28 (59) Complete: 🔍 Submitter: davidgilmore Cache ID: 99:F32:101 Submitinfo Accepted Submit #793436: p2r3 Convert 1.0.0 Path Traversal (by davidgilmore) Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸