Catching prompt injections hidden in PDFs
2 comments · a11y, ai, pdf, security
- Comments2
#23Rank now 2
#12Peak rank
2Days on list
144Score · 7d
Nov 7, 2026First seen
Rank · 7 days
On Lobsters
a11yaipdfsecurity
- Score
- 4
- Comments
- 2
- Submitted by
- tclancy
- Tags
- a11y, ai, pdf, security
- Site
- tomclancy.info
Story details from Lobsters ↗ · linked article on tomclancy.info.
Trending history
Catching prompt injections hidden in PDFs was first seen on Lobsters · Hottest on Nov 7, 2026. Since then it has appeared in 40 checks on 2 different days. Its best position was #12 of 25, reached on Nov 8, 03:51 UTC. It is #23 right now, slipping from #17 to #23 over the last 6 checks.
Rank history
Position on Lobsters · Hottest at every check (lower is better).
Last 14 days
Best rank per day (UTC).
14
12
Oct 26today
Metric history
▲ as reported by Lobsters.
From the discussion
A few top-level comments from Lobsters, shortened. Read the full thread on Lobsters.
This sounds like it can be abysmal for screen readers, but cool tech nonetheless! I wonder how long until we can make tools to detect/generate PDFs with these features built in (not long, i'd wager)
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Lobsters 2 days, best #12
Questions
Is Catching prompt injections hidden in PDFs trending on Lobsters right now?
Yes. As of Nov 8, 15:21 UTC it is #23, slipping from #17 to #23 over the last 6 checks.
What is the highest rank Catching prompt injections hidden in PDFs reached?
#12 on Lobsters · Hottest, on Nov 8, 03:51 UTC. Trendoday checks this list every 30 minutes.
How long has Catching prompt injections hidden in PDFs been trending?
It was first seen on Nov 7, 2026 and has been on the list on 2 days (40 checks) since.