Description

A security flaw has been discovered in treefrogframework treefrog-framework up to 2.11.2. This vulnerability affects the function std::strncmp of the file src/tsessioncookiestore.cpp of the component Session Cookie Handler. The manipulation results in improper authentication. The attack can be launched remotely. A high complexity level is associated with this attack. It is stated that the exploitability is difficult. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "5.6",
  "pubDate": "2026-08-17T03:16:49.960Z",
  "pubdate": "2026-08-17T03:16:49.960Z",
  "executiveSummary": "An improper authentication vulnerability has been identified within the treefrogframework treefrog-framework up to version 2.11.2, specifically residing in the Session Cookie Handler component. The flaw stems from insecure string comparison logic utilizing the std::strncmp function within the src/tsessioncookiestore.cpp source file. Successful exploitation of this security defect compromises the integrity of session management, leading to improper authentication outcomes that can be leveraged by remote adversaries.\nThe risk implications are significant, as session-based security controls can be bypassed, potentially allowing unauthorized access to sensitive application states and user sessions. While the vulnerability is remotely exploitable, it is characterized by a high complexity level and difficult exploitability. Publicly available exploit material increases the urgency for defenders to address the issue. The vendor was contacted early regarding this disclosure, ensuring awareness of the security flaw.",
  "technicalDetails": "The vulnerability is localized to the src/tsessioncookiestore.cpp file within the Session Cookie Handler component of the treefrogframework treefrog-framework up to version 2.11.2. The root cause of the improper authentication vulnerability involves the misuse or insecure implementation of the standard library function std::strncmp during the validation or comparison of session cookies.\nExploitation of this flaw occurs over the network, as the attack can be launched remotely without requiring prior authentication or local privilege access. The attack flow relies on the mechanics of how std::strncmp evaluates input strings against expected session identifiers or cryptographic tokens. If the comparison logic fails to properly validate the full length, boundary conditions, or expected contents of the session cookie due to improper use of std::strncmp, a remote attacker can manipulate crafted payloads to spoof valid session states.\nThe payload behavior centers around inducing a false positive during the session validation check, thereby bypassing authentication mechanisms enforced by the Session Cookie Handler. Because the vulnerability is associated with a high complexity level and difficult exploitability, attackers must carefully construct their inputs to satisfy the constrained conditional checks imposed by the vulnerable comparison routine. Post-exploitation impact includes unauthorized access to user sessions, potential privilege escalation within the application context, and unauthorized manipulation of session-dependent resources."
}