Linux Distros Unpatched Vulnerability : CVE-2026-15041

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A flaw was found in 389 Directory Server. The PBKDF2-SHA256 password verification function uses standard memcmp for comparing password hashes instead of a...

PYSEC-2026-1716 OctoPrint has Timing Side-Channel Vulnerability in API Key Authentication

Impact OctoPrint versions up to and including 1.11.5 are affected by a theoretical timing attack vulnerability that allows API key extraction over the network. Due to using character based comparison that short-circuits on the first mismatched character during API key validation, rather than 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...

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-2026-1331 Timing-Based Username Enumeration Vulnerability in Fides Webserver Authentication

A timing-based username enumeration vulnerability has been identified in Fides Webserver authentication. This vulnerability allows an unauthenticated attacker to determine the existence of valid usernames by analyzing the time it takes for the server to respond to login requests. The discrepancy ...

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-2026-1283 Python Cryptography package vulnerable to Bleichenbacher timing oracle attack

A flaw was found in the python-cryptography package. 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...

PYSEC-2026-1416 Gradio apps vulnerable to timing attacks to guess password

Impact This 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 app...

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...

USN-8502-1 gnutls28 vulnerabilities

It was discovered that GnuTLS had a timing side-channel when processing malformed ciphertexts in RSA-PSK ClientKeyExchange. A remote attacker could possibly use this issue to recover sensitive information. This issue only affected Ubuntu 18.04 LTS. CVE-2024-0553 Bing Shi discovered that GnuTLS...

postgresql: PostgreSQL: Credential recovery via covert timing channel in MD5 password comparison

A flaw was found in PostgreSQL. This vulnerability, a covert timing channel, exists in the comparison of MD5-hashed passwords during authentication. A remote attacker could exploit this to recover user credentials, gaining unauthorized access to the database. This issue specifically impacts...

PYSEC-2026-1066 wolfCrypt leaks cryptographic information via timing side channel

wolfSSL and wolfCrypt 4.0.0 and earlier when configured without --enable-fpecc, --enable-sp, or --enable-sp-math contain a timing side channel in ECDSA signature generation. This allows a local attacker, able to precisely measure the duration of signature operations, to infer information about th...

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...

OESA-2026-2842 qt5-qtbase security update

This package provides base tools, such as string, xml, and network handling. Security Fixes: An issue was discovered in HTTP2 in Qt before 5.15.18, 6.x before 6.2.13, 6.3.x through 6.5.x before 6.5.7, and 6.6.x through 6.7.x before 6.7.3. Code to make security-relevant decisions about an...

MiracleLinux 8 : postgresql:12 (AXSA:2026-1167:01)

The remote MiracleLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2026-1167:01 advisory. postgresql: PostgreSQL: Credential recovery via covert timing channel in MD5 password comparison CVE-2026-6478 postgresql: integer overflow can caus...

RHEL 8 : libpq (RHSA-2026:35880)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:35880 advisory. The libpq package provides the PostgreSQL client library, which allows client programs to connect to PostgreSQL servers. Security Fixes:...

MiracleLinux 8 : postgresql:13 (AXSA:2026-1171:01)

The remote MiracleLinux 8 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2026-1171:01 advisory. postgresql: PostgreSQL: Credential recovery via covert timing channel in MD5 password comparison CVE-2026-6478 Tenable has extracted the preceding descriptio...