GHSA-2RGJ-GX5X-F62W ImageMagick: Information Disclosure in distributed pixel cache server because it is not using a challenge–response authentication model

The distributed pixel cache was originally designed to operate without a challenge–response authentication model. However, given today’s heightened security expectations, we have changed our implementation...

Plonky3 MultiField32Challenger: transcript malleability and challenge entropy loss

Impact - Key: challenger/src/multifieldchallenger.rs | MultiField32Challenger::duplexing | transcriptmalleability - Affected files: challenger/src/multifieldchallenger.rs, field/src/helpers.rs - Violated invariant: The Fiat-Shamir sponge must bind challenges to the exact sequence of observed fiel...

PT-2026-42813

Name of the Vulnerable Software and Affected Versions The product name cannot be determined affected versions not specified Description The distributed pixel cache was originally designed to operate without a challenge-response authentication model, which is a security mechanism where one party...

jdbc.postgresql.org: pgjdbc: Client-side Denial of Service via malicious SCRAM-SHA-256 authentication

A flaw was found in pgjdbc, an open-source PostgreSQL JDBC Driver. A malicious server can exploit this vulnerability by instructing the driver to perform SCRAM-SHA-256 Salted Challenge Response Authentication Mechanism Secure Hash Algorithm 256 authentication with an excessively large iteration...

Linux Distros Unpatched Vulnerability : CVE-2026-33603

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Attacker can use a specially crafted base64 exchange between Dovecot and Client to fake SCRAM TLS channel binding. This requires that the attacker is able to...

GHSA-J5RM-V3VH-VX94 eduMFA Passkeys: missing expiration flag may allow replay attacks and reuse of old challenges

Impact In eduMFA = 2.9.1 by adding validity information to the userless challenges. Workarounds No known workarounds besides disabling userless login altogether...

Arbitrary File Write And Deletion

github.com/go-acme/lego is vulnerable to arbitrary file write and deletion. The vulnerability is due to improper validation of the HTTP-01 challenge token in the webroot challenge provider, which allows a malicious ACME server to supply crafted ../ path traversal sequences and write or delete fil...

[SECURITY] Fedora 44 Update: nginx-mod-js-challenge-0^20230517.gitda6852d-7.fc44

Simple JavaScript proof-of-work based access for Nginx with virtually no over head...

CVE-2026-42256

A flaw was found in Net::IMAP, a Ruby library for Internet Message Access Protocol IMAP client functionality. A hostile server can exploit this vulnerability during SCRAM-SHA1 or SCRAM-SHA256 Salted Challenge Response Authentication Mechanism - Secure Hash Algorithm 1 or 256 authentication by...

Fedora 44 : nginx / nginx-mod-brotli / nginx-mod-fancyindex / etc (2026-094eb13bb1)

The remote Fedora 44 host has packages installed that are affected by multiple vulnerabilities as referenced in the FEDORA-2026-094eb13bb1 advisory. nginx-mod-fancyindex: - Rebuild for 1.30.1 nginx-mod-headers-more: - Rebuild for 1.30.1 nginx-mod-naxsi: - Rebuild for 1.30.1 nginx-mod-js-challenge...

Challenge_Unix-

Copy Fail — CVE-2026-31431 Lab Introducción a UNIX · UIDE ·...

SUSE CVE-2026-33603

Attacker can use a specially crafted base64 exchange between Dovecot and Client to fake SCRAM TLS channel binding. This requires that the attacker is able to position itself between Dovecot and the client connection. If successful, the attacker can eavesdrop communications between Dovecot and...

Why Agentic AI Is Security's Next Blind Spot

Agentic AI is already running in production environments across many organizations today. It is executing tasks, consuming data, and taking actions — most likely without meaningful involvement from the security team. The industry conversation has largely framed this as a question of policy: allow...

PgBouncer buffer overflow in SCRAM

...

CVE-2026-42256

Net::IMAP implements Internet Message Access Protocol IMAP client functionality in Ruby. From versions 0.4.0 to before 0.4.24, 0.5.0 to before 0.5.14, and 0.6.0 to before 0.6.4, when authenticating a connection with SCRAM-SHA1 or SCRAM-SHA256, a hostile server can perform a computational...

CVE-2026-42256 net-imap: Denial of service via high iteration count for `SCRAM-*` authentication

Net::IMAP implements Internet Message Access Protocol IMAP client functionality in Ruby. From versions 0.4.0 to before 0.4.24, 0.5.0 to before 0.5.14, and 0.6.0 to before 0.6.4, when authenticating a connection with SCRAM-SHA1 or SCRAM-SHA256, a hostile server can perform a computational...

CVE-2026-42256

Net::IMAP (Ruby) is affected by a Denial of Service when authenticating with SCRAM-SHA1/SCRAM-SHA256 if a hostile server sends a very high iteration count. Affected versions: 0.4.0–0.4.23, 0.5.0–0.5.13, 0.6.0–0.0.6. Wait that seems wrong: fix lists are 0.4.24, 0.5.14, 0.6.4. Corrected: Affected r...

CVE-2026-6665

The SCRAM code in PgBouncer before 1.25.2 did not check the return value of strlcat correctly when building the contents of the SCRAM client-final-message. A malicious backend that sends a SCRAM server-final-message with a long nonce can trigger a stack overflow...

CVE-2026-6665 PgBouncer buffer overflow in SCRAM

The SCRAM code in PgBouncer before 1.25.2 did not check the return value of strlcat correctly when building the contents of the SCRAM client-final-message. A malicious backend that sends a SCRAM server-final-message with a long nonce can trigger a stack overflow...

CVE-2026-6664

An integer overflow in network packet parsing code in PgBouncer before 1.25.2 bypasses a boundary check and can lead to a crash. An unauthenticated remote attacker can crash PgBouncer with a malformed SCRAM authentication packet...