CVE-2026-15041

A flaw was found in 389 Directory Server. The PBKDF2-SHA256 password verification function uses standard memcmp for comparing password hashes instead of a constant-time comparison function. A remote attacker could potentially use timing measurements of LDAP bind attempts to infer partial hash...

CVE-2026-15041 389-ds-base: 389-ds-base: non-constant-time comparison in pbkdf2-sha256 password verification

A flaw was found in 389 Directory Server. The PBKDF2-SHA256 password verification function uses standard memcmp for comparing password hashes instead of a constant-time comparison function. A remote attacker could potentially use timing measurements of LDAP bind attempts to infer partial hash...

EUVD-2026-42213

A flaw was found in 389 Directory Server. The PBKDF2-SHA256 password verification function uses standard memcmp for comparing password hashes instead of a constant-time comparison function. A remote attacker could potentially use timing measurements of LDAP bind attempts to infer partial hash...

CVE-2026-15041 389-ds-base: 389-ds-base: non-constant-time comparison in pbkdf2-sha256 password verification

A flaw was found in 389 Directory Server. The PBKDF2-SHA256 password verification function uses standard memcmp for comparing password hashes instead of a constant-time comparison function. A remote attacker could potentially use timing measurements of LDAP bind attempts to infer partial hash...

CVE-2026-15041

A flaw was found in 389 Directory Server. The PBKDF2-SHA256 password verification function uses standard memcmp for comparing password hashes instead of a constant-time comparison function. A remote attacker could potentially use timing measurements of LDAP bind attempts to infer partial hash...

PT-2026-56392

A flaw was found in 389 Directory Server. The PBKDF2-SHA256 password verification function uses standard memcmp for comparing password hashes instead of a constant-time comparison function. A remote attacker could potentially use timing measurements of LDAP bind attempts to infer partial hash...

FastAPI Api Key has a timing side-channel in verify_key that allows statistical key validity detection

ImpactTiming side-channel vulnerability in verifykey. The method applied a random delay only on verification failures, allowing an attacker to statistically distinguish valid from invalid API keys by measuring response latencies. With enough repeated requests, an adversary could infer whether a...

PYSEC-2026-1358 FastAPI Api Key has a timing side-channel in verify_key that allows statistical key validity detection

Impact Timing side-channel vulnerability in verifykey. The method applied a random delay only on verification failures, allowing an attacker to statistically distinguish valid from invalid API keys by measuring response latencies. With enough repeated requests, an adversary could infer whether a...

vLLM is vulnerable to timing attack at bearer auth

SummaryThe API key support in vLLM performed validation using a method that was vulnerable to a timing attack. This could potentially allow an attacker to discover a valid API key using an approach more efficient than brute force...

PYSEC-2026-2026 vLLM is vulnerable to timing attack at bearer auth

Summary The API key support in vLLM performed validation using a method that was vulnerable to a timing attack. This could potentially allow an attacker to discover a valid API key using an approach more efficient than brute force. Details...

PYSEC-2026-1590 Lord of Large Language Models vulnerable to Observable Discrepancy attack via authenticate_user function

The parisneo/lollms repository is affected by a timing attack vulnerability in the authenticateuser function within the lollmsauthentication.py file. This vulnerability allows attackers to enumerate valid usernames and guess passwords incrementally by analyzing response time differences. The...

Lord of Large Language Models vulnerable to Observable Discrepancy attack via authenticate_user function

The parisneo/lollms repository is affected by a timing attack vulnerability in the authenticateuser function within the lollmsauthentication.py file. This vulnerability allows attackers to enumerate valid usernames and guess passwords incrementally by analyzing response time differences. The...

PYSEC-2026-1922 SignXML's signature verification with HMAC is vulnerable to a timing attack

When verifying signatures with X509 certificate validation turned off and HMAC shared secret set signxml.XMLVerifier.verifyrequirex509=False, hmackey=..., prior versions of SignXML are vulnerable to a potential timing attack. The verifier may leak information about the correct HMAC when comparing...

SignXML's signature verification with HMAC is vulnerable to a timing attack

When verifying signatures with X509 certificate validation turned off and HMAC shared secret set signxml.XMLVerifier.verifyrequirex509=False, hmackey=..., prior versions of SignXML are vulnerable to a potential timing attack. The verifier may leak information about the correct HMAC when comparing...

vantage6 vulnerable to a username timing attack on recover password/MFA token

ImpactMuch like https://github.com/vantage6/vantage6/security/advisories/GHSA-45gq-q4xh-cp53, it is possible to find which usernames exist in vantage6 by calling the API routes /recover/lost and /2fa/lost, which send emails to users if they have lost their password or MFA token. Usernames can be...

PYSEC-2026-2005 vantage6 vulnerable to a username timing attack on recover password/MFA token

Impact Much like https://github.com/vantage6/vantage6/security/advisories/GHSA-45gq-q4xh-cp53, it is possible to find which usernames exist in vantage6 by calling the API routes /recover/lost and /2fa/lost, which send emails to users if they have lost their password or MFA token. Usernames can be...

Gradio apps vulnerable to timing attacks to guess password

ImpactThis security policy is with regards to a timing attack that allows users of Gradio apps to potentially guess the password of password-protected Gradio apps. This relies on the fact that string comparisons in Python terminate early, as soon as there is a string mismatch. Because Gradio apps...

m2crypto Bleichenbacher timing attack - incomplete fix for CVE-2020-25657

A flaw was found in m2crypto. This issue may allow a remote attacker to decrypt captured messages in TLS servers that use RSA key exchanges, which may lead to exposure of confidential or sensitive data...

vantage6 vulnerable to username timing attack

ImpactIt is possible to find out usernames from the response time of login requests. This could aid attackers in credential attacks WorkaroundsNo...

PYSEC-2026-2008 vantage6 vulnerable to username timing attack

Impact It is possible to find out usernames from the response time of login requests. This could aid attackers in credential attacks Workarounds No...