Signal
Critical 18-year-old vulnerability found in nginx rewrite module enables remote code execution
Evidence first: scan the strongest sources, then decide whether to go deeper.
Published 2026-05-14 06:00 UTCUpdated 2026-05-14 12:03 UTC
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cvevulnerabilitysecurity_advisoryincident_response
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Evidence trail (top sources)
top sources (2 domains)domains are deduped. counts indicate coverage, not truth.2 top sources shown
limited source diversity in top sources
Overview
A severe security flaw in the nginx ngx_http_rewrite_module has been disclosed, affecting both NGINX Plus and NGINX Open. The vulnerability, a heap buffer overflow (CVE-2026-42945) with a CVSS v4 score of 9.2, allows unauthenticated attackers to cause denial of service or execute arbitrary code remotely.
Entities
NGINXUbuntungx_http_rewrite_moduledepthfirst
Score total
1
Momentum 24h
2
Posts
2
Origins
2
Source types
1
Duplicate ratio
0%
Why now
- The flaw was only recently discovered after 18 years, highlighting latent risks in critical software.
- Ubuntu and other vendors have issued security advisories to prompt immediate remediation.
- Attackers may attempt to exploit this high-severity vulnerability before systems are patched.
Why it matters
- The vulnerability allows unauthenticated remote attackers to execute arbitrary code or cause denial of service.
- Nginx is widely used in web infrastructure, so the flaw poses a broad security risk.
- Timely patching is critical to prevent exploitation of this long-standing issue.
LLM analysis
Topic mix: lowPromo risk: lowSource quality: high
Recurring claims
- The nginx ngx_http_rewrite_module contains a heap buffer overflow vulnerability allowing remote code execution or denial of service.
How sources frame it
- The Hacker News: neutral
- Ubuntu Security Notices: neutral
All evidence
All evidence
Ubuntu Security Notices
ubuntu.com · ubuntu.com · 2026-05-14 12:03 UTC
The Hacker News
thehackernews.com · thehackernews.com · 2026-05-14 06:00 UTC
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Posts loaded: 0Publishers: 2Origin domains: 2Duplicates: -
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Top publishers (this list)
- ubuntu.com (1)
- thehackernews.com (1)
Top origin domains (this list)
- ubuntu.com (1)
- thehackernews.com (1)