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Flatpak – a security nightmare

flatkill.org Essays & writing Essays & articles Security & privacy Candidate
Screenshot of flatkill.org captured 2026-07-20
Page preview · captured 2026-07-20

Resurfaced independently across 3 calendar years, with breakout response in 3 of them.

submissions
3
submitters
3
observed span
2018–2021
peak thread · 257 comments
377 pts
latest 20+ return · 2021-06-23
55 pts

Submission timeline

2007–2026

One slot for every year since HN launched. Height is that year's peak points; orange marks a 100+ point or 50+ comment breakout. Select a bar to open its strongest thread.

First comments on top threads

HN comment order

> Sadly, it's obvious Red Hat developers working on flatpak do not care about security, yet the self-proclaimed goal is to replace desktop application distribution - a cornerstone of linux security. Sheesh, while the issues raised are all valid, this does not actually justify such a conclusion about the intent of the Red Hat developers. Telling people what their side of the story is for them in a dismissive fashion like this is not going to make it more likely…

> A high severity CVE-2017-9780 (CVSS Score 7.2) has indeed been assigned to this vulnerability. Flatpak developers consider this a minor security issue. The actual wording in the linked release is "This is a minor security update, matching the behaviour on master where we avoid ever creating setuid files or world-writable directories." The wording is perhaps a little ambiguous, but my interpretation of that is, "this is a minor update that fixes a security issue," not "this is an update…

thayne·218-point thread·

I don't get why people feel the need to make these unique domain names for a single blog post. This happened with 'chrome is bad'[0] where someone anonymously registered a new domain complaining about Chrome's updater taking up CPU, but the comments later pointed out that it most likely was just a bug in activity monitor[1]. It seems the only reason for doing this instead of having a personal site with multiple blog posts is to spark debate while keeping…

The first top-level comment from each of the four biggest threads, in HN’s own order. Excerpts are shortened; open a comment for full context.

Breakout years
3

100+ points or 50+ comments

Total points
650

reference only — not used in Hall rules or ranking

Total comments
439

reference only — not used in Hall rules or ranking

Every submission

DateTitle as submittedByPointsComments
2018-10-09Flatpak – a security nightmareFirst breakout · Best threadstryk377257
2020-06-14Flatpak – A Security Nightmare (2018)fao_218120
2021-06-23Flatpak – A Security NightmareLatest 20+ point returnpmoriarty5562