Anthropic’s Opus 5 Is Better at Resisting Prompt Injection

The chart is interesting. On the IPI benchmark, Opus 5 improved over Opus 4.8, reducing the probability of an attacker succeeding within 15 attempts from 5.5% to 2.0%, and from 0.5% to 0.2% on 1 attempt. It also improved on Sonnet 5 5.9% at k=15 and Mythos 5 2.6%, making it the most robust model...

Anthropic Says Claude Mistook the Open Internet for a CTF and Breached Three Organizations

Anthropic on Thursday became the latest artificial intelligence AI company to reveal that three of its models, including Claude Opus 4.7, Mythos 5, and an unnamed research model, had breached three unnamed organizations during cybersecurity testing without its knowledge. The AI firm said the...

PYSEC-2026-3404 vLLM: OOM Denial of Service via Audio Decompression Bomb

Summary vLLM's /v1/audio/transcriptions endpoint limits compressed upload size but not decoded PCM output. A 25MB OPUS file expands to 14.9GB of float32 PCM at decode time. Tested on vLLM v0.19.0. Details SpeechToTextProcessor rejects uploads over VLLMMAXAUDIOCLIPFILESIZEMB default 25MB based on...

Malicious code in ts-opus (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 73b0105b34723dd6e1449c3353d1d4df0dcf94ae460a4dfd156566bb4ba372c7 ts-opus 0.0.8 ships an unmodified copy of MikeMcl/big.js README, copyright, and repository URL all reference big.js but injects an additional top-lev...

GHSA-6PR9-RP53-2PMC vLLM: OOM Denial of Service via Audio Decompression Bomb

Summary vLLM's /v1/audio/transcriptions endpoint limits compressed upload size but not decoded PCM output. A 25MB OPUS file expands to 14.9GB of float32 PCM at decode time. Tested on vLLM v0.19.0. Details SpeechToTextProcessor rejects uploads over VLLMMAXAUDIOCLIPFILESIZEMB default 25MB based on...

PT-2026-50489

Name of the Vulnerable Software and Affected Versions vLLM versions prior to 0.23.1rc0 Description The '/v1/audio/transcriptions' endpoint limits the size of compressed uploads but fails to limit the size of the decoded PCM Pulse Code Modulation output. PCM is an uncompressed digital audio format...

EUVD-2025-210152

A heap buffer overflow in the Opus audio stream parser component of GPAC MP4Box v2.4 allows attackers to cause a Denial of Service DoS via supplying a crafted MP4 file...

EUVD-2025-210147

A heap buffer overflow in the gfopusparsepacketheader function mediatools/avparsers.c of GPAC MP4Box v2.4 allows attackers to cause a Denial of Service DoS via supplying a crafted MP4 file...

EUVD-2025-210151

A stack overflow in the gfopusreadlength function mediatools/avparsers.c of GPAC MP4Box v2.4 allows attackers to cause a Denial of Service DoS via supplying a crafted MP4 file...

CVE-2025-55661

A heap buffer overflow in the Opus audio stream parser component of GPAC MP4Box v2.4 allows attackers to cause a Denial of Service DoS via supplying a crafted MP4 file...

CVE-2025-55660

A stack overflow in the gfopusreadlength function mediatools/avparsers.c of GPAC MP4Box v2.4 allows attackers to cause a Denial of Service DoS via supplying a crafted MP4 file...

CVE-2025-55648

A heap buffer overflow in the gfopusparsepacketheader function mediatools/avparsers.c of GPAC MP4Box v2.4 allows attackers to cause a Denial of Service DoS via supplying a crafted MP4 file...

CVE-2025-55661

Summary: CVE-2025-55661 concerns GPAC MP4Box v2.4, specifically its Opus audio stream parser. The issue is a heap buffer overflow in parsing Opus data, which can be triggered by processing a crafted MP4 file and may cause a Denial of Service. The threat is assessed locally (attack vector: local) ...

CVE-2025-55648

GPAC MP4Box v2.4 is affected by a heap buffer overflow in gf_opus_parse_packet_header (media_tools/av_parsers.c) that can cause a Denial of Service when a crafted MP4 file is processed. This is a DoS by exploiting a memory-protection flaw in the parser; CVSS notes a local attack with user interac...

CVE-2025-55660

A stack overflow in the gfopusreadlength function mediatools/avparsers.c of GPAC MP4Box v2.4 allows attackers to cause a Denial of Service DoS via supplying a crafted MP4 file...

CVE-2025-55648

A heap buffer overflow in the gfopusparsepacketheader function mediatools/avparsers.c of GPAC MP4Box v2.4 allows attackers to cause a Denial of Service DoS via supplying a crafted MP4 file...

PT-2026-49278

Name of the Vulnerable Software and Affected Versions GPAC MP4Box version 2.4 Description A stack overflow occurs in the gf opus read length function within the media tools/av parsers.c file. This issue allows attackers to cause a Denial of Service DoS by providing a specially crafted MP4 file...

CVE-2025-55648

A heap buffer overflow in the gfopusparsepacketheader function mediatools/avparsers.c of GPAC MP4Box v2.4 allows attackers to cause a Denial of Service DoS via supplying a crafted MP4 file...

CVE-2025-55661

A heap buffer overflow in the Opus audio stream parser component of GPAC MP4Box v2.4 allows attackers to cause a Denial of Service DoS via supplying a crafted MP4 file...

CVE-2025-55661

A heap buffer overflow in the Opus audio stream parser component of GPAC MP4Box v2.4 allows attackers to cause a Denial of Service DoS via supplying a crafted MP4 file...