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Claude Opus 5.5

https://www.anthropic.com/claude-opus-5-5
335•km144•1h ago•401 comments

OpenAI GPT–6 Astra breaks Enigma message that has resisted solution since 2005

https://www.cryptocellar.org/bgac/the-mvueh-break.html
354•sohkamyung•3h ago•279 comments

There's a high chance of devices being sold with GrapheneOS preinstalled in 2027

https://grapheneos.social/@GrapheneOS/117299954135808210
35•Cider9986•34m ago•7 comments

Claude Opus 5.5 Intelligence, Performance and Price Analysis

https://artificialanalysis.ai/models/claude-opus-5-5
43•theanonymousone•56m ago•22 comments

WordPress: Unauthenticated path traversal leading to conditional RCE

https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-7hp8-65ch-5whp
36•vntok•1h ago•15 comments

16-bit Intel 8088 chip

https://allpoetry.com/16-bit-Intel-8088-chip
53•rbanffy•1h ago•7 comments

OpenAI is well positioned to fast-follow Jev

https://arcturus-labs.com/blog/2026/09/21/will-openai-eat-jevs-lunch/
158•JohnBerryman•3h ago•113 comments

Launch HN: Coverage Cat (YC S22) – Umbrella insurance via your personal agent

https://www.coveragecat.com/
8•botacode•21m ago•3 comments

Writing Rust code that's fast by asking agents to make the code faster

https://minimaxir.com/2026/09/agentic-iteration/
50•mooreds•2h ago•21 comments

Apple has added persistent 'ads' to iOS, and it's driving users crazy

https://www.techradar.com/phones/iphone/i-wish-apple-would-just-stop-that-crap-apple-has-added-pe...
377•MC995•3h ago•282 comments

Show HN: Drop – A rootless Linux sandbox with gVisor support

https://droprun.sh/
106•mixedbit•3h ago•34 comments

Show HN: AI·rete·RAG – a Rete rule engine decides, RAG explains why

https://ai-rete-rag.com/
14•ZaharaHussain•1h ago•0 comments

Solitaire Alone Together

https://solitairealonetogether.com/
71•eieio•19h ago•19 comments

Can gzip be a language model?

https://nathan.rs/posts/gzip-lm/
333•networked•11h ago•127 comments

AMD's random number generator can't generate a 0?

https://board.flatassembler.net/topic.php?t=24261
203•BruceEel•9h ago•154 comments

MiMo v2.6

https://mimo.xiaomi.com/mimo-v2-6
1051•volf_•21h ago•462 comments

One Minute Park

https://oneminutepark.tv/
8•namuorg•1d ago•3 comments

Show HN: InstinctFlash – Run 5B world-action models in real time on Jetson Thor

https://github.com/General-Instinct/InstinctFlash
8•guanming0717•2h ago•0 comments

Spymarks, not Watermarks

https://brand.io/article/spymarks/
619•possibilistic•18h ago•156 comments

Meta’s Muse has a serious 0-day

https://arstechnica.com/security/2026/09/muse-metas-extraordinarily-privileged-ai-assistant-has-a...
80•pavel_lishin•3h ago•32 comments

Teleoperated Humans

https://www.jefftk.com/p/teleoperated-humans
33•luu•2d ago•37 comments

I asked Meta’s Muse for its filesystem and it sent me 6.8GB

https://mouse.dev/blog/muse-runtime-export/
194•Aeroi•2h ago•106 comments

The Economics of Open-Weight Inference

https://data.ornn.com/publications/the-economics-of-open-weight-inference
20•marinesebastian•4h ago•9 comments

MUNI Heritage Weekend in San Francisco

https://daniel.lawrence.lu/blog/2026-09-20-muni-heritage-weekend/
106•plun9•1d ago•21 comments

Transformers Explained Visually

https://poloclub.github.io/transformer-explainer/
572•aray07•22h ago•84 comments

Relativistic raytracing

https://publish.obsidian.md/h1m3/Articles/Relativistic+raytracing
14•vismit2000•1d ago•2 comments

Vacate a drone restriction that criminalized recording immigration agents

https://www.eff.org/deeplinks/2026/09/dc-circuit-must-vacate-drone-flight-restriction-criminalize...
57•hn_acker•2h ago•12 comments

I said no and Apple said yes

https://dbushell.com/2026/09/22/apple-intelligence/
675•thatslast•9h ago•543 comments

I don't want to read what you didn't write

https://blog.colinbreck.com/i-dont-want-to-read-what-you-didnt-write/
952•mooreds•19h ago•392 comments

MiMo-v2.6-Pro: Intelligence, Performance and Price Analysis

https://artificialanalysis.ai/models/mimo-v2-6-pro
140•theanonymousone•13h ago•60 comments
Open in hackernews

WordPress: Unauthenticated path traversal leading to conditional RCE

https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-7hp8-65ch-5whp
35•vntok•1h ago

Comments

system2•49m ago
pearcmd.php must exist, and register_argc_argv must be on, not common with hosting providers. But I am assuming the other themes and meeting conditions possibly affect a lot of WordPress sites.
dofm•31m ago
As the article points out, one issue is that the official Docker container for PHP has this configuration.

However at least in principle all of the affected versions [0] could be automatically updated. Not sure if they have set it to auto-update as far back as 4.7 though.

[0] except 4.9.3 which has a bug in its automatic update mechanism.

foul•28m ago
pearcmd and register_argc_argv are just examples. get_page_template was unsanitized in some themes, that's the flaw, you could then combine it with one of a million unauthorized file upload in wordpress plugins to try and eval code. An attacker would like to use upload + this chain of requires (instead of just uploading a php) because of hardened configuration and the pwn can go unnoticed in the logs.

Also, with pearcmd (if you can get to that, there's no open_basedir) and containers a novice sysadmin will publish insecure sites.

tptacek•45m ago
These CVSS scores don't mean anything and it would be better for everyone if they stopped showing up in headlines. This is a somewhat situational Wordpress RCE that impacts only a couple themes.
paulez•34m ago
This score specifically means that given some specific conditions, anyone can execute code over the network on a vulnerable WordPress setup. Is this not true?
tptacek•28m ago
I'm not saying that the vulnerability isn't severe or important to people running Wordpress, only that CVSS scores are literally a Ouija Board that can come out to whatever the user wants them to.
nicce•14m ago
> CVSS scores are literally a Ouija Board that can come out to whatever the user wants them to.

Not really. They are very good at describing the technical impact. Sometimes pre-condition is very rare and that reduces overall likelihood but for those few it applies, the impact still could be catastrophic. Who wants to risk it if whole business could go down?

akerl_•8m ago
So if I get a 9.8 that doesn't apply to my usage, what is the CVSS score doing for me?
bombcar•7m ago
whycome•37m ago
hmm, this may be why i just saw an unexpected update to a very old theme.
vntok•29m ago
Ironically, this 9 years old comment on the official documentation page of one of the affected functions perfectly describes both the nature and remediation of this major security flaw:

> Paul Ryan 9 years ago

> Note that locate_template() does not prevent directory traversal attacks, so if you’re passing a user-provided template name to the function, be sure to verify that it’s from one of the three appropriate locations (active theme directory, parent theme directory, or /wp-includes/theme-compat/ directory).

https://developer.wordpress.org/reference/functions/locate_t...

foul•22m ago
Ahahah I remember to have patched themes for clients by hand, years ago. A different time, where a core team would for whatever reason leave security holes around to be sure you need three frameworks around their pile of dung code.
My assumption is that any Wordpress setup whatsoever allows anyone to execute code remotely.
vntok•34m ago
> This is a somewhat situational Wordpress RCE that impacts only a couple themes. reply

That is dangerously incorrect, a whole lot of themes are vulnerable. The main pre-condition, "presence of a top-level directory named 'page-xxx' like 'page-templates' in the theme's directory" is actually an official recommendation in the WordPress documentation.

See here: https://developer.wordpress.org/themes/classic-themes/templa...

> As discussed in Organizing Theme Files, WordPress can recognize page templates stored in the theme’s root folder or in a first-level subdirectory of the theme folder. *The page-templates/ folder is a common convention* for organizing global page templates, but it is not required. Page templates can also be stored in other first-level subdirectories, such as templates/ or page_templates/.

dofm•27m ago
Not sure if it’s a couple. Devs routinely make heavily edited copies of the core themes so there will be many, many unpublished themes that use the “page-“ prefix for templates; it was (is?) a reasonably common convention.

(No particular disagreement with the rest of your comment though)