CVE-2026-35042 | nearform fast-jwt crit Header Extension data authenticity

VDB-355277 · CVE-2026-35042 · GCVE-0-2026-35042 NEARFORM FAST-JWT CRIT HEADER EXTENSION DATA AUTHENTICITY HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 5.1 $0-$5k 0.52+ Summaryinfo A vulnerability classified as problematic has been found in nearform fast-jwt. Affected is an unknown function of the component crit Header Extension. The manipulation leads to data authenticity. This vulnerability is uniquely identified as CVE-2026-35042. The attack is possible to be carried out remotely. No exploit exists. Detailsinfo A vulnerability, which was classified as problematic, has been found in nearform fast-jwt (version now known). This issue affects some unknown processing of the component crit Header Extension. The manipulation with an unknown input leads to a data authenticity vulnerability. Using CWE to declare the problem leads to CWE-345. The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data. Impacted is integrity. The advisory is shared at github.com. The identification of this vulnerability is CVE-2026-35042. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/04/2026). There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Productinfo Vendor nearform Name fast-jwt CPE 2.3info 🔒 CPE 2.2info 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 5.3 VulDB Meta Temp Score: 5.1 VulDB Base Score: 5.3 VulDB Temp Score: 5.1 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: Data authenticity CWE: CWE-345 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: no mitigation known Status: 🔍 0-Day Time: 🔒 Timelineinfo 04/04/2026 Advisory disclosed 04/04/2026 +0 days VulDB entry created 04/04/2026 +0 days VulDB entry last update Sourcesinfo Advisory: github.com Status: Not defined CVE: CVE-2026-35042 (🔒) GCVE (CVE): GCVE-0-2026-35042 GCVE (VulDB): GCVE-100-355277 Entryinfo Created: 04/04/2026 08:11 Changes: 04/04/2026 08:11 (48) Complete: 🔍 Cache ID: 99:F58:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸