TinyPNG security updates, in plain English

TinyPNG

1,622 sites report using it · on drupal.org · 1 security update explained here

This module uses smart lossy compression techniques to reduce the file size of your PNG files.

Below is every security update for TinyPNG that this site has covered, newest first. Each one says who could exploit it, whether it applies to your site, how urgent it is, and what to tell your developer. If your site uses this module and you are not sure which version, that is the first question to ask whoever looks after it.

TinyPNG

Moderately critical · 1,622 sites report using it · SA-CONTRIB-2026-246 · on drupal.org · Week of 21 October 2026

The module does not sufficiently check access to image derivatives when those files are served via a file stream other than the private one. Anyone with no login could view private derived images. They could not alter any images or settings.

Who could do thisAnyone visiting the site. No login needed.
Does it apply to youDrupal must be configured to use a contributed file scheme to serve private derived images.
Has it been used in attacksNo sign of it.
How urgentDrupal rates this moderately critical. Include it in your next routine update, within the month.

Tell your developerUpdate TinyPNG to 2.0.2.

For developers: what the fix changed

The fix updates src/Controller/TinyPngImageStyleDownloadController.php around line 156 to always determine if a scheme is public by checking against a list of public schemes rather than relying on a token check.

2.0.1 to 2.0.2 1 commit, 1 file.

src/Controller/TinyPngImageStyleDownloadController.php +9 −9 fix

Full diff, 2.0.1 to 2.0.2

The comparison is against the release immediately before the fix. If your site is on an older release, more will have changed.

Get in touch

Tell me who you are, what your organisation does, and what you need. That might be a Drupal site that needs looking after, an upgrade to get done before December, or an agency that needs Drupal cover.

If I can help, I'll say so and suggest a call. If I can't, I'll tell you straight away rather than waste your time.

For context: I work mainly with UK membership bodies, charities and research organisations, and with the agencies that look after their websites. Not recruiters.

Or start smaller and connect with me on LinkedIn. That's where I post what I find digging around in charity and grants data, and where the free tools turn up first.

TinyPNG

TinyPNG

Send me your Drupal site's address.

Get in touch

Links

Reference