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...

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...

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...

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...

CVE-2026-41516

OP-TEE is a Trusted Execution Environment TEE designed as companion to a non-secure Linux kernel running on Arm; Cortex-A cores using the TrustZone technology. Starting in version 4.5.0 and prior to version 4.11.0, the RSA PKCS1 v1.5 decryption implementation in the Hisilicon HPRE crypto driver...

PYSEC-2026-884 OpenStack Compute (Nova) Exposure of Sensitive Information to an Unauthorized Actor vulnerability

api/metadata/handler.py in OpenStack Compute Nova before 2013.2.4, 2014.x before 2014.1.2, and Juno before Juno-2, when proxying metadata requests through Neutron, makes it easier for remote attackers to guess instance ID signatures via a brute-force attack that relies on timing differences in...

linux-pam: Plaintext password recovery via timing discrepancy in pam_userdb module

A flaw was found in Linux-PAM's pamuserdb module. This vulnerability, categorized as an Observable Timing Discrepancy CWE-208, allows a local or network-adjacent attacker to recover plaintext passwords. By repeatedly attempting authentication and measuring response-timing differences during...

Information Exposure

Overview Affected versions of this package are vulnerable to Information Exposure via the Authorizer function. An attacker can determine valid usernames by measuring the response time difference between valid and invalid usernames during authentication attempts. Remediation There is no fixed...

Information Exposure

Overview Affected versions of this package are vulnerable to Information Exposure via the Authorizer function. An attacker can determine valid usernames by measuring the response time difference between valid and invalid usernames during authentication attempts. Remediation Upgrade...

PT-2026-55274

Name of the Vulnerable Software and Affected Versions Fiber versions prior to 3.3.0 Description The default Authorizer function in the BasicAuth middleware, located in middleware/basicauth/config.go, uses short-circuit evaluation when validating credentials. If a username does not exist, the syst...

GHSA-MJGF-XJ26-9QF9 pay-rails/pay: non-constant-time HMAC comparison in Paddle Billing webhook signature verifier

Summary Pay::Webhooks::PaddleBillingControllervalidsignature? app/controllers/pay/webhooks/paddlebillingcontroller.rb verifies the Paddle Billing webhook signature by computing OpenSSL::HMAC.hexdigest... and comparing it to the attacker-supplied header value using Ruby's String==. Ruby's == is...

Timing Attack

Overview pay is a package for processing payments in Ruby on Rails apps Affected versions of this package are vulnerable to Timing Attack via the validsignature? function. An attacker can recover valid webhook signatures by sending multiple requests with crafted Paddle-Signature header values and...

httpd: mod_auth_digest: timing attack allows a bypass of digest authentication

A flaw was found in the modauthdigest module of httpd. A remote unauthenticated attacker can bypass digest authentication by measuring timing discrepancies of requests. This issue leads to unauthorized access to resources protected by digest authentication...

K000162004: Apache HTTP Server vulnerability CVE-2026-33006

Security Advisory Description A timing attack against modauthdigest in Apache HTTP Server 2.4.66 allows a bypass of Digest authentication by a remote attacker. Users are recommended to upgrade to version 2.4.67, which fixes this issue. CVE-2026-33006 Impact There is no impact; F5 products are not...

CVE-2026-27882 Coolify: Timing Attack in GitLab Webhook Token Validation

Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.461, the GitLab webhook endpoint uses a non-constant-time string comparison operator !== to validate the webhook secret token. This implementation is vulnerable to timing attack...

CVE-2026-27882

Coolify prior to 4.0.0-beta.461 uses a non-constant-time string comparison (!=) to validate the GitLab webhook secret token, enabling timing-based disclosure of the secret. The issue is fixed in 4.0.0-beta.461. Remediation: upgrade to 4.0.0-beta.461.

CVE-2026-27882

Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.461, the GitLab webhook endpoint uses a non-constant-time string comparison operator !== to validate the webhook secret token. This implementation is vulnerable to timing attack...

CVE-2026-27882 Coolify: Timing Attack in GitLab Webhook Token Validation

Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.461, the GitLab webhook endpoint uses a non-constant-time string comparison operator !== to validate the webhook secret token. This implementation is vulnerable to timing attack...

DEBIAN-CVE-2026-13758

CryptX versions before 0.088001 for Perl compare AEAD authentication tags in non-constant time in the streaming decryptdone path. The decryptdone$tag form compares it against the computed tag with memNE memcmp != 0, which short-circuits on the first differing byte, so its run time depends on the...