Security Bulletin: Unauthenticated Remote Code Execution via Auto-Login Bypass and Code Validation

Summary A vulnerability allowed unauthenticated attackers to achieve remote code execution on default-configured instances. The vulnerability combined two distinct issues: an unauthenticated endpoint that issued superuser bearer tokens to any network caller, and a code validation endpoint that...

ANT-2026-ZRDQDR79 · util-linux · heap-use-after-free

use-after-free medium CVE-2026-13595 GHSA-qpmf-9p9c-455w Severity Claude critical · Security research firm high · Maintainer medium Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Calif. ANT-2026-ZRDQDR79:...

OSV-2026-1161 Heap-buffer-overflow in ppp_tx_frame

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=546440470 Crash type: Heap-buffer-overflow WRITE Crash state: ppptxframe ppprx mgtcpiprx...

OSV-2026-1157 Memcpy-param-overlap in zxc_decompress_chunk_wrapper_default

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=546426939 Crash type: Memcpy-param-overlap Crash state: zxcdecompresschunkwrapperdefault zxcdecompressframe fuzzdecompress.c...

CVE-2026-74388

In the Linux kernel, the following vulnerability has been resolved: ALSA: seq: oss: Fix UAF at handling events with embedded SysEx data The OSS sequencer processes the input MIDI bytes into a sequencer event to be dispatched later in sndseqossmidiputc called from sndseqossprocessevent. When it's ...

UBUNTU-CVE-2026-74388

In the Linux kernel, the following vulnerability has been resolved: ALSA: seq: oss: Fix UAF at handling events with embedded SysEx data The OSS sequencer processes the input MIDI bytes into a sequencer event to be dispatched later in sndseqossmidiputc called from sndseqossprocessevent. When it's ...

CVE-2026-74388

In the Linux kernel, the following vulnerability has been resolved: ALSA: seq: oss: Fix UAF at handling events with embedded SysEx data The OSS sequencer processes the input MIDI bytes into a sequencer event to be dispatched later in sndseqossmidiputc called from sndseqossprocessevent. When it's ...

CVE-2026-74388

In the Linux kernel, the following vulnerability has been resolved: ALSA: seq: oss: Fix UAF at handling events with embedded SysEx data The OSS sequencer processes the input MIDI bytes into a sequencer event to be dispatched later in sndseqossmidiputc called from sndseqossprocessevent. When it's ...

CVE-2026-74388

The CVE-2026-74388 issue affects the Linux kernel ALSA: seq: oss component, where SysEx handling in the OSS sequencer could lead to a use-after-free if a sequencer port closes during dispatch. The root cause is a stale pointer in a pending event held after input MIDI bytes are turned into a seque...

EUVD-2026-59535

In the Linux kernel, the following vulnerability has been resolved: ALSA: seq: oss: Fix UAF at handling events with embedded SysEx data The OSS sequencer processes the input MIDI bytes into a sequencer event to be dispatched later in sndseqossmidiputc called from sndseqossprocessevent. When it's ...

PT-2026-72824

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free UAF issue exists in the ALSA OSS sequencer when handling events with embedded SysEx data. The OSS sequencer processes MIDI bytes into events via snd seq oss midi putc an...

CVE-2026-74388: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: ALSA: seq: oss: Fix UAF at handling events with embedded SysEx data The OSS sequencer processes the input MIDI bytes into a sequencer event to be dispatched later in sndseqossmidiputc called from sndseqossprocessevent. When it's ...

Linux Distros Unpatched Vulnerability : CVE-2026-74388

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ALSA: seq: oss: Fix UAF at handling events with embedded SysEx data The OSS sequencer processes the input MIDI bytes into a sequencer event to be dispatched lat...

zxc:zxc_fuzzer_decompress: Memcpy-param-overlap in zxc_decompress_chunk_wrapper_default

Project: https://github.com/hellobertrand/zxc.git Detailed Report: https://oss-fuzz.com/testcase?key=4590193643159552 Project: zxc Fuzzing Engine: afl Fuzz Target: zxcfuzzerdecompress Job Type: aflasanzxc Platform Id: linux Crash Type: Memcpy-param-overlap Crash Address:...

Security Bulletin: Code Injection Vulnerability in Code Validation Endpoint

Summary A code injection vulnerability was identified in the code validation endpoint that allowed authenticated users to execute arbitrary code on the server. The vulnerability existed in the validation logic which compiled and executed function definitions to check for import errors. Attackers...

selinux:selabel_file_text-fuzzer: Segv on unknown address in pcre2_jit_match_8

Project: https://github.com/SELinuxProject/selinux.git Detailed Report: https://oss-fuzz.com/testcase?key=4683859900563456 Project: selinux Fuzzing Engine: libFuzzer Fuzz Target: selabelfiletext-fuzzer Job Type: libfuzzermsanselinux Platform Id: linux Crash Type: Segv on unknown address Crash...

tcpreplay:fuzz_fragroute: Heap-buffer-overflow in ip_add_option

Project: https://github.com/appneta/tcpreplay.git Detailed Report: https://oss-fuzz.com/testcase?key=5090327015522304 Project: tcpreplay Fuzzing Engine: libFuzzer Fuzz Target: fuzzfragroute Job Type: libfuzzerasantcpreplay Platform Id: linux Crash Type: Heap-buffer-overflow WRITE 2 Crash Address:...

CVE-2026-19297: Improper Restriction of Excessive Authentication Attempts

IBM Langflow OSS 1.0.0 through 1.9.6 could allow a remote attacker to obtain unauthorized access to user accounts due to improper restriction of excessive authentication attempts...

Security Bulletin: Insufficient Authentication Brute Force Protection on Login Endpoint

Summary A rate limiting capability exists within the product to restrict the number of authentication attempts permitted per IP address per minute against the login endpoint POST /api/v1/login. This control is configurable via the LANGFLOWRATELIMITENABLED environment variable, which defaults to...

php:php-fuzz-function-jit: Heap-use-after-free in zval_ptr_dtor_nogc

Detailed Report: https://oss-fuzz.com/testcase?key=4584750845853696 Project: php Fuzzing Engine: honggfuzz Fuzz Target: php-fuzz-function-jit Job Type: honggfuzzasanphp Platform Id: linux Crash Type: Heap-use-after-free READ 4 Crash Address: 0x7944a94efd30 Crash State: zvalptrdtornogc...