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F5Cybersecurity incident

F5's BIG-IP product was found to have a critical unauthenticated heap-overflow vulnerability (CVE-2026-94127) that allows for remote code execution, as detailed in a research article by watchTowr...

What happened

F5's BIG-IP product was found to have a critical unauthenticated heap-overflow vulnerability (CVE-2026-94127) that allows for remote code execution, as detailed in a research article by watchTowr Labs.

Source

Comments on the post

5 of 14 comments
  • “F5 stuff costs way too much for this shit to be possible.”

    u/HJForsythe53 points · Sep 23, 2026View

  • “Auth header too big for big-ip”

    u/pourquoipasvous31 points · Sep 23, 2026View

  • “Imagine writing security-critical software in insecure languages... (And then wonder why you get pwned every week...)”

    u/NamedBird13 points · Sep 24, 2026View

  • “Time to have fable rewrite that stack in go or rust.”

    u/ImATurtleOnTheNet9 points · Sep 24, 2026View

  • “clown show”

    u/Human_Pollution28202 points · Sep 24, 2026View

Extracted by Autobound

From the Signal API record
Signal
Cybersecurity incident

What this signalsUser posts often show product pain before it reaches reviews or churn.

Subreddit
r/cybersecurity
Stage
Confirmed
Event date
Sep 2026

Companies

  • watchTowr LabsAlso named

The full record

From the Signal API record

Numbers

Mentions
12

Details

Timing
Completed
Category
Vulnerability disclosed
Virality
High
Post kind
Link
Prominence
Core
Company's role
Subject
Content warning
Profanity in quotes
Signal category
Event

Topics and mentions

Topics

  • vulnerability
  • application security
  • cybersecurity
  • cve
  • rce

Flair

  • Research Article

Products named

  • BIG-IP

Extraction

Sentiment
Negative
Detected
Sep 23, 2026
signal_type
reddit-company
signal_subtype
cybersecurityIncident

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The API returns more than this page shows

This page shows a preview. The full reddit-company record in the Signal API and MCP can also have these 8 fields. Some fields are empty for some signals.

Company

  • linkedin_urlValue in the API
  • industriesValue in the API
  • employee_count_lowValue in the API
  • employee_count_highValue in the API
  • revenueValue in the API
  • descriptionValue in the API

Signal

  • signal_nameValue in the API
  • associationValue in the API
Show the full JSONThe record on this page and the API request

GET /v1/signals/80d05a59-d093-5948-ad1b-b8cb63b85507 returns this record as JSON. POST /v1/companies/enrich returns every signal for f5.com.

{
  "signal_id": "80d05a59-d093-5948-ad1b-b8cb63b85507",
  "signal_type": "reddit-company",
  "signal_subtype": "cybersecurityIncident",
  "detected_at": "2026-09-23T23:23:57+00:00",
  "company": {
    "name": "F5",
    "domain": "f5.com"
  },
  "data": {
    "nsfw": false,
    "stage": "confirmed",
    "awards": 0,
    "timing": "completed",
    "topics": [
      "vulnerability",
      "cve",
      "rce",
      "application security",
      "cybersecurity"
    ],
    "post_id": "1wolkt2",
    "summary": "F5's BIG-IP product was found to have a critical unauthenticated heap-overflow vulnerability (CVE-2026-94127) that allows for remote code execution, as detailed in a research article by watchTowr Labs.",
    "category": "vulnerability_disclosed",
    "comments": [
      {
        "url": "https://www.reddit.com/r/cybersecurity/comments/1wolkt2/comment/pbo35lx/",
        "depth": 0,
        "score": 53,
        "author": "HJForsythe",
        "excerpt": "F5 stuff costs way too much for this shit to be possible.",
        "posted_at": "2026-09-23T23:43:52.000Z",
        "author_url": "https://www.reddit.com/user/HJForsythe/"
      },
      {
        "url": "https://www.reddit.com/r/cybersecurity/comments/1wolkt2/comment/pbo5hce/",
        "depth": 0,
        "score": 31,
        "author": "pourquoipasvous",
        "excerpt": "Auth header too big for big-ip",
        "posted_at": "2026-09-23T23:56:38.000Z",
        "author_url": "https://www.reddit.com/user/pourquoipasvous/"
      },
      {
        "url": "https://www.reddit.com/r/cybersecurity/comments/1wolkt2/comment/pbpstvy/",
        "depth": 0,
        "score": 13,
        "author": "NamedBird",
        "excerpt": "Imagine writing security-critical software in insecure languages...\n(And then wonder why you get pwned every week...)",
        "posted_at": "2026-09-24T06:08:46.000Z",
        "author_url": "https://www.reddit.com/user/NamedBird/"
      },
      {
        "url": "https://www.reddit.com/r/cybersecurity/comments/1wolkt2/comment/pbohf0i/",
        "depth": 0,
        "score": 9,
        "author": "ImATurtleOnTheNet",
        "excerpt": "Time to have fable rewrite that stack in go or rust.",
        "posted_at": "2026-09-24T01:02:29.000Z",
        "author_url": "https://www.reddit.com/user/ImATurtleOnTheNet/"
      },
      {
        "url": "https://www.reddit.com/r/cybersecurity/comments/1wolkt2/comment/pbq5ko1/",
        "depth": 0,
        "score": 2,
        "author": "Human_Pollution2820",
        "excerpt": "clown show",
        "posted_at": "2026-09-24T07:54:27.000Z",
        "author_url": "https://www.reddit.com/user/Human_Pollution2820/"
      },
      {
        "url": "https://www.reddit.com/r/cybersecurity/comments/1wolkt2/comment/pbrwakt/",
        "depth": 0,
        "score": 2,
        "author": "OkResource820",
        "excerpt": "Once again, I am reminded that the biggest risk to your enterprise tech stack is adding one more layer to \"improve\" your tech stack security.",
        "posted_at": "2026-09-24T14:31:30.000Z",
        "author_url": "https://www.reddit.com/user/OkResource820/"
      }
    ],
    "evidence": [
      "[post] Is This A Joke? In The Auth Header? (F5 BIG-IP UnAuth Heap-Overflow to RCE CVE-2026-94127) - watchTowr Labs",
      "[comment u/HJForsythe] F5 stuff costs way too much for this shit to be possible."
    ],
    "link_url": "https://labs.watchtowr.com/is-this-a-joke-in-the-auth-header-f5-big-ip-unauth-heap-overflow-to-rce-cve-2026-94127/",
    "virality": "high",
    "post_date": "2026-09-23T23:23:57.000Z",
    "post_kind": "link",
    "sentiment": "negative",
    "subreddit": "cybersecurity",
    "event_date": "2026-09",
    "post_flair": [
      "Research Article"
    ],
    "post_title": "Is This A Joke? In The Auth Header? (F5 BIG-IP UnAuth Heap-Overflow to RCE CVE-2026-94127) - watchTowr Labs",
    "prominence": "core",
    "source_url": "https://www.reddit.com/r/cybersecurity/comments/1wolkt2/is_this_a_joke_in_the_auth_header_f5_bigip_unauth/",
    "entity_role": "subject",
    "post_author": "dx7r__",
    "upvote_ratio": 0.9850746268656716,
    "mention_count": 12,
    "mention_surge": true,
    "subreddit_url": "https://www.reddit.com/r/cybersecurity/",
    "total_upvotes": 130,
    "comments_total": 14,
    "total_comments": 14,
    "content_warning": "profanity_in_quotes",
    "other_companies": [
      {
        "name": "watchTowr Labs",
        "role": "partner",
        "domain": "labs.watchtowr.com"
      }
    ],
    "post_author_url": "https://www.reddit.com/user/dx7r__/",
    "signal_category": "event",
    "comments_included": 6,
    "products_mentioned": [
      "BIG-IP"
    ]
  }
}

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