Linux Latest Vulnerability Allows Reading Root-Owned Files by Unprivileged Users
A new Linux kernel vulnerability named ssh-keysign-pwn allows unprivileged users to read files owned by the root user. The flaw affects all Linux kernel versions up to the latest Git state as of 14 May 2026. It has been patched in the mainline kernel following disclosure by Qualys.
- ▪The ssh-keysign-pwn vulnerability enables unprivileged users to access root-owned files.
- ▪All Linux kernel releases up to the current Git state are affected by this vulnerability.
- ▪Qualys reported the vulnerability and the mainline Linux kernel has been patched to fix it.
- ▪The fix involves modifying the kernel's ptrace behavior to prevent unauthorized access.
- ▪Linux 7.0.8 and LTS kernels have been updated to address the issue.
2 outlets in our directory ran this story, first to last over 34 hours. All of the coverage we found sits in one bucket: centre. That one-sidedness is itself worth noticing.
- ▪ Linux kernel flaw opens root-only files to unprivileged users — www.theregister.com - Articles
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| Original publisher | Phoronix |
| Canonical URL | https://www.phoronix.com/news/Linux-ssh-keysign-pwn |
| Publication time | Sun, 17 May 2026 06:08:45 +0000 |
| Retrieval time | 2026-05-17T06:33:59.083Z |
| Last seen | 2026-05-17T06:33:59.083Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | quTj9YbHOreS · 2 stories |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
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| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
Linux's Latest Vulnerability Allows Reading Root-Owned Files By Unprivileged Users Written by Michael Larabel in Linux Kernel on 14 May 2026 at 09:35 PM EDT. 51 Comments Following Dirty Frag, Fragnesia, and other Linux kernel vulnerabilities making themselves known in recent days, the latest now is ssh-keysign-pwn. With ssh-keysign-pwn, unprivileged users are able to read root-owned files. That affects all Linux kernel releases up through today's latest Linux Git state as of earlier today. The ssh-keysign-pwn was reported by Qualys and fixed by the mainline Linux kernel earlier today. This patch to adjust the kernel's ptrace behavior is what fixes the issue.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at Phoronix.