GHSA-M4VJ-WR5Q-CMVR Duplicate Advisory: Vikunja: Every /api/v2 pre-auth endpoint is unthrottled on a stock install while its /api/v1 twin is rate limited

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-6rvj-qwjf-3m4q. This link is maintained to preserve external references. Original Description Vikunja versions before 2.6.0 fail to apply rate limiting to /api/v2 public authentication endpoints including login,...

CVE-2026-91972

Vikunja versions before 2.6.0 fail to apply rate limiting to /api/v2 public authentication endpoints including login, register, password-reset, and OAuth token routes. Remote unauthenticated attackers can perform unbounded credential guessing, account enumeration, and password-reset flooding...

CVE-2026-91972

Vikunja versions before 2.6.0 fail to apply rate limiting to /api/v2 public authentication endpoints including login, register, password-reset, and OAuth token routes. Remote unauthenticated attackers can perform unbounded credential guessing, account enumeration, and password-reset flooding...

python: Python/Expat: Denial of Service via crafted XML document

A flaw was found in the python and expat components. Insufficient entropy in the hash-flooding protection mechanism of xml.parsers.expat and xml.etree.ElementTree allows a remote attacker to craft a malicious XML document. This crafted document can trigger a hash flooding attack, leading to a...

EUVD-2026-78439

Affected versions of MISP do not consistently apply the existing authentication-failure logging throttle. Two API authentication failure branches wrote directly to the Log model: - API requests with no authentication key; - requests supplying an API key with an incorrect length Unlike other...

CVE-2026-91972: Improper Restriction of Excessive Authentication Attempts

Vikunja versions before 2.6.0 fail to apply rate limiting to /api/v2 public authentication endpoints including login, register, password-reset, and OAuth token routes. Remote unauthenticated attackers can perform unbounded credential guessing, account enumeration, and password-reset flooding...

PT-2026-92091

Name of the Vulnerable Software and Affected Versions Vikunja versions prior to 2.6.0 Description Public authentication endpoints under /api/v2, including login, register, password-reset, and OAuth token routes, do not implement rate limiting. This allows remote unauthenticated attackers to execu...

Astra Linux – Vulnerability in bind9

By flooding the target resolver with queries that exploit this flaw, an attacker can significantly impair the resolver’s performance, effectively denying legitimate clients access to the DNS resolution service...

HYDRA: Quantifying Botnet Resource Thresholds for Efficient Link-Flooding Attacks on LEO Satellite Networks

Low Earth orbit LEO satellite constellations, such as Starlink and Kuiper, are rapidly emerging as a critical backbone for low-latency global connectivity. As these systems expand, they become more attractive attack targets, necessitating increased resilience and security. Threat actors seek to...

Linux Distros Unpatched Vulnerability : CVE-2026-89604

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - efivarfs: Rate limit statfs handler Ravi reports that statfs may be called by unprivileged users on the efivarfs mount point, which may result in a flood of cal...

CVE-2026-89499

A flaw was found in the Linux kernel's ring-buffer component. When a remote reader update fails during a page swap, the system incorrectly proceeds as if the swap succeeded. This can lead to log flooding, potentially causing a denial of service by exhausting system resources or hindering system...

DEBIAN-CVE-2026-89499

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Stop remote reader update when page swap fails The remote swapreaderpage callback can return -EBUSY when the writer moves the head before the remote catches it, particularly during an event storm on a small buffer...

UBUNTU-CVE-2026-89499

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Stop remote reader update when page swap fails The remote swapreaderpage callback can return -EBUSY when the writer moves the head before the remote catches it, particularly during an event storm on a small buffer...

CVE-2026-89604

In the Linux kernel, the following vulnerability has been resolved: efivarfs: Rate limit statfs handler Ravi reports that statfs may be called by unprivileged users on the efivarfs mount point, which may result in a flood of calls to the QueryVariableInfo runtime service. These calls are...

EUVD-2026-76516

In the Linux kernel, the following vulnerability has been resolved: efivarfs: Rate limit statfs handler Ravi reports that statfs may be called by unprivileged users on the efivarfs mount point, which may result in a flood of calls to the QueryVariableInfo runtime service. These calls are...

CVE-2026-89499 ring-buffer: Stop remote reader update when page swap fails

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Stop remote reader update when page swap fails The remote swapreaderpage callback can return -EBUSY when the writer moves the head before the remote catches it, particularly during an event storm on a small buffer...

Security Bulletin: TS4300 Tape Library addresses security vulnerability CVE-2025-36045

Summary Certain email-related functions in the web GUI and APIs did not enforce rate limiting, allowing authenticated users to generate excessive email traffic by repeatedly invoking email-sending requests. This could lead to email flooding, increased mail server resource consumption, higher...

Security Advisory 0159

Security Advisory 0159 . CSAF PDF Date: September 9, 2026 Revision | Date | Changes ---|---|--- 1.0 | September 9, 2026 | Initial release 1.1 | September 22, 2026 | CSAF JSON file added The CVE-ID tracking this issue: CVE-2026-73462 CVSSv3.1 Base Score: 6.5...

libexpat: libexpat: Denial of Service via hash flooding attack with crafted XML

A flaw was found in libexpat. This vulnerability arises from the software misinterpreting a return code, leading to insufficient randomness entropy for hash functions. A remote attacker could exploit this by sending specially crafted XML content, triggering hash flooding attacks. This can result ...

EulerOS 2.0 SP12 : python3 (EulerOS-SA-2026-3380)

According to the versions of the python3 packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : xml.parsers.expat and xml.etree.ElementTree use insufficient entropy for Expat hash-flooding protection, which allows a crafted XML document to...