CVE-2023-39846
CWE-287Published: August 16, 2023· Updated: Jun 17, 2026
Official Description
An issue in Konga v0.14.9 allows attackers to bypass authentication via a crafted JWT token.
Risk Analysis
Konga v0.14.9 contains an authentication bypass vulnerability that allows attackers to circumvent security controls using a crafted JWT token. Given its critical CVSS score of 9.8, this flaw is highly urgent as it allows for full system compromise without authentication.
There is no known public exploit for this vulnerability, and it is not currently listed in the CISA KEV catalog. It is remotely exploitable due to the network-based attack vector.
Users should upgrade to a patched version of Konga if available or implement strict network access controls to limit exposure.
Technical Analysis
CVE-2023-39846 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.
From a weakness classification perspective (CWE-287): Authentication bypass vulnerabilities allow attackers to access protected resources without valid credentials.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (2)
Quick Facts
Related CVEs (CWE-287)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-39846 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts