PHP 8 disable_functions bypass PoC
Details
- External ID
- 47226605
- Source
- HN
- Company
- —
- Product
- PHP 8 disable_functions bypass PoC
- Website domain
- github.com
- Launched
- March 3, 2026
- Cohort
- —
- Upvotes
- 29
- Upvotes percentile
- 0.7902829028290282
- Tags
- —
- Fetched at
- Sept. 7, 2026, 9:26 p.m.
- Updated at
- Sept. 7, 2026, 9:26 p.m.
Enrichment
- Theme
- security exploits and system hacking tools
- Vertical
- Security
- Function
- Dev tools
- Audience
- Developer
- AI stance
- Not AI
- Project type
- Hobby / open-source project
- Normalized one-liner
- php security vulnerability proof of concept
- Manually corrected
- False
Could you build this?
No Creating a reliable PHP 8 disable_functions bypass requires deep binary exploitation knowledge, memory corruption primitives, and low-level understanding of Zend Engine internals.
What it would actually take: Developing this requires specialized binary exploitation skills and deep knowledge of C, glibc memory allocators, and PHP's Zend Engine. The process involves finding memory safety bugs or exploitable behaviors across PHP core extensions (such as FFI, PCNTL, or heap corruptions in standard modules), constructing arbitrary read/write memory primitives, and circumventing modern mitigation mechanisms (ASLR, NX, RELRO) to execute shellcode or invoke execve directly in memory.
Discussion
10 comments analyzed.
Concerns raised: disable_functions not actually a security feature, easily bypassed, PHP doesn't handle object resurrection or memory corruption properly, False sense of security from disable_functions in shared hosting, PHP standard library has many 'really bad parts' that can't be properly excluded
Feature requests: Proper sandbox/security mechanism to replace disable_functions, Better handling of object resurrection in destructors, Memory safety improvements to prevent use-after-free vulnerabilities
Competitors
Other products that read as similar to this one — 136 launches clear the similarity bar, closest 8 shown.
Attention rank: #30 of 137 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 96 days after the earliest competitor.
- Rust compiler in PHP emitting x86-64 executables · hn · 2026-03-01 · 66 upvotes · similarity 0.49
- cve-2026-87902-poc · github · 2026-09-22 · 31 upvotes · similarity 0.47
- cve-2026-41940-PoC · github · 2026-09-16 · 528 upvotes · similarity 0.45
- GNU grep as a PHP extension · hn · 2026-04-10 · 32 upvotes · similarity 0.45
- CVE-2026-75604-PoC · github · 2026-09-28 · 10 upvotes · similarity 0.45
- CVE-2026-42980-PoC · github · 2026-09-28 · 32 upvotes · similarity 0.44
- CVE-2026-83991-writeup-and-poc · github · 2026-09-09 · 15 upvotes · similarity 0.44
- CVE-2026-87902 · github · 2026-09-22 · 9 upvotes · similarity 0.43
Other launches for this product
- No other launches for this product.
Same idea, different domain
Nobody's really built a dev tools tool for Sales yet.