OpenAI’s AI Discovers PHP Vulnerability — Warns Similar Finds Will ‘Surge in Coming Months’

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The story

On October 21, OpenAI announced that its own AI model had discovered a vulnerability in the open-source language PHP, with a fix released that same day. OpenAI predicts that “similar discoveries will surge in the coming months.” On 5ch, reactions mixed welcoming AI-driven vulnerability discovery with criticism over the chaos caused when information leaked before the fix was ready. Alongside that, plenty of sarcastic calls to ditch internet dependence and go back to fax machines and hanko stamps stood out.

10/22 (Thu) 1:14 AM

ITmedia NEWS

On October 21 (local time), OpenAI announced that one of its AI models had discovered a vulnerability in the open-source programming language PHP, with a fix released the same day. The company predicts that “similar discoveries will surge in the coming months.”

Source: news.yahoo.co.jp / Original article here

What people said

14AnonymousOct 22, 2026 07:56
So anything goes when a system's vulnerable?
18AnonymousOct 22, 2026 07:57
Re: #14
You guys do the same thing — call it a 'pile-on' (enjou, Japan's term for online mob-shaming) and use whoever looks weak as a punching bag.
108AnonymousOct 22, 2026 08:45
Re: #14
This mindset is exactly why Japan's security is bottom-tier.
29AnonymousOct 22, 2026 08:02
So every time a vulnerability's found, do we have to shut down the service to brace for attack AIs?
45AnonymousOct 22, 2026 08:08
Re: #29
That's probably how it's gonna be from now on.
49AnonymousOct 22, 2026 08:11
Let's go back to the age of fax machines and hanko stamps (personal name seals used for official signatures in Japan).
52AnonymousOct 22, 2026 08:14
Re: #49
Cue the land-fraud scammers (jimenshi, con artists who sell land they don't own) nodding: 'Tell me about it!'
69AnonymousOct 22, 2026 08:24
Re: #49
Asahi Beverages actually did exactly that when they got hacked.
55AnonymousOct 22, 2026 08:14
So once trust in the internet collapses, we just go back to paper and hanko stamps? Guess digital was pointless after all.
65AnonymousOct 22, 2026 08:21
Re: #55
Kind of sad, but if the whole world went back to paper, hanko, and signatures, Japan's economic competitiveness would probably shoot right back up like it was in the early Heisei era (late 1980s–90s).
58AnonymousOct 22, 2026 08:15
Is that why the V Point (a major Japanese loyalty-points site) has been stuck in maintenance mode forever?
68AnonymousOct 22, 2026 08:23
Re: #58
V Point's been going into maintenance every month lately.
82AnonymousOct 22, 2026 08:31
AI's too competent for its own good.
All the engineers who couldn't spot the flaw should just quit the industry lol
85AnonymousOct 22, 2026 08:32
Re: #82
It was bound to need fixing eventually — the AI just happened to find it first.
86AnonymousOct 22, 2026 08:33
Hard to believe, given how dumb the free AI tools can act sometimes.
123AnonymousOct 22, 2026 08:57
Re: #86
Basically, AI can define and store rules — even on the free tier.
ChatGPT's free version gets pretty sharp once you've fed it a ton of stored rules.
Gemini, not so much.
The real issue is how you write and store the rules, plus the concept of feedback.
Way too many users have no clue about any of that.
131AnonymousOct 22, 2026 09:01
Re: #86
AI can fundamentally define and store rules, and even on the free tier, using it properly can significantly boost the accuracy and consistency of its answers.
But a lot of users don't understand how to create and store rules, or the feedback concept — analyzing what's wrong with an answer and feeding that back in to improve it.
Problems with the default setup:
Your personal judgment criteria and response rules aren't adequately reflected.
Past corrections and failures aren't systematically accumulated into rules that prevent recurrence.
There's no mechanism to analyze flawed answers and continuously improve them.
Leave your instructions vague, and you get answers that miss the point, unnecessary pushback, and inconsistent formatting.
With complex conditions or multiple interacting rules, since the application conditions and priority aren't sorted out, it's hard to keep answers consistent.
In short, the bigger problem isn't the AI's raw ability itself — it's the lack of accumulated rules and proper operation, meaning its true potential never gets fully drawn out.
87AnonymousOct 22, 2026 08:33
The only real fix is to punish unauthorized access on par with insurrection or treason, with every investigative agency worldwide cooperating. No time to be squabbling with each other.
95AnonymousOct 22, 2026 08:40
Re: #87
No guarantee those investigative agencies themselves aren't doing unauthorized access too.
101AnonymousOct 22, 2026 08:42
Just had a thought — the trend right now is using AI to build perfect defenses, and if we keep pushing that until even human error is eliminated entirely… once that's actually achieved, I feel like there'd be no way left to stop the AI if it ever went rogue.
106AnonymousOct 22, 2026 08:45
Re: #101
The fact that you can even think of that — you're an AI yourself, aren't you?
114AnonymousOct 22, 2026 08:50
Re: #101
Don't worry — once we can't keep up with the AI cat-and-mouse game anymore, we'll just revert to analog.
120AnonymousOct 22, 2026 08:54
Is it really cleanly split into defenders and attackers though? I don't use AI so I don't have the knowledge and can't put this well, but if everything gets handed off to AI, isn't there a chance the AI that's supposedly defending now flips over to the attacking side?
125AnonymousOct 22, 2026 08:57
Re: #120 There's also a reading where this is all one grand pro-wrestling show (i.e., a staged spectacle), with legendary old-guard coding fossils from around the world being made to dance. Anyone who could just casually fix this by hand is probably already elderly. Maybe it's the grandkid generation pulling AI pranks just to humor their badass old-timer grandpas…
127AnonymousOct 22, 2026 08:59
Re: #120
Attacking advertises the need for defense, buyers flock in, and the defenders funnel money back to the attackers.
144AnonymousOct 22, 2026 09:09
Still better than the attack tool getting distributed first, I'd think.
147AnonymousOct 22, 2026 09:11
Re: #144
Apparently it's already been distributed, though.
160AnonymousOct 22, 2026 09:16
Re: #144
It's become a huge problem because some idiot calling himself a security researcher went and published it.
158AnonymousOct 22, 2026 09:16
They were taking their time preparing a fix, planning to announce it only after the patch was out, but some attention-seeking monster leaked it early — and that's exactly why this whole mess happened. The 'leaker engineer' (lit. 'the one who wet himself') is getting dogpiled by the entire world right now.
162AnonymousOct 22, 2026 09:18
Re: #158
Wild that an actual working engineer wouldn't know what happens if you publicize a hole before it's patched.
167AnonymousOct 22, 2026 09:22
Re: #158
That's just the behavior of some idiot who doesn't want to let go of the spotlight. End result: the weakness just stays exposed longer. What an idiot lol
202AnonymousOct 22, 2026 09:41
Is it theoretically impossible to eliminate this kind of vulnerability for good? This is just an endless cat-and-mouse game no matter how much time passes!
206AnonymousOct 22, 2026 09:42
Re: #202
The internet is a world where you can't get anything done unless you leave the door cracked open a little. Can't be helped.
208AnonymousOct 22, 2026 09:42
Re: #202
It'll go away once humans and computers both stop evolving in every sense lol

Background and Key Points of This Discussion

PHP is a language used widely across web services around the world, so any vulnerability found in it has a huge blast radius. This time, OpenAI disclosed how it found the flaw at the same moment the fix went live, but the thread also raised a separate point — that a fix was reportedly being prepared quietly, meant to be announced only after patching, only for information to leak early and cause confusion. That’s a case of information-management trouble on the developer-community side, distinct from OpenAI’s own announcement; reading the two together without separating them risks the misunderstanding that OpenAI’s announcement itself caused the chaos. The discussion split along two lines: whether to view AI-driven vulnerability discovery positively, versus jumping to claims that “human engineers are becoming unnecessary” — with the latter being something of a tangent from the main topic. The punchline about returning to fax machines and hanko stamps is best read not as an actual proposed countermeasure, but as sarcasm aimed at the risks of internet dependence.

*This article is excerpted and summarized from the 5ch (News Speed+) thread “PHP Vulnerability Discovered by OpenAI’s AI — “Similar Discoveries Will Surge in Coming Months”.”

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