Akregator mangles feed icon URLs containing percent-encoded query parameters (%3A %2F → 88A 31F)

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1

Problem

I’m running Akregator on Windows and I’ve noticed that feed icon URLs containing
percent-encoded characters in their query string are being corrupted — specifically,
%3A and %2F get mangled into 88A and 31F.

Example

Original URL (as it appears in the RSS feed XML source, from an RSSHub instance
using images.weserv.nl as image proxy):

https://images.weserv.nl?url=https%3A%2F%2Fpbs.twimg.com%2Fprofile_images%2F1722602835299500033%2FhXskVj9F_normal.png

What Akregator turns it into (observed when inspecting the failed icon request):

https://images.weserv.nl?url=https88A31F31Fpbs.twimg.com31Fprofile_images31F172260283529950003331FhXskVj9F_normal.png

The % signs and hex escape sequences have been stripped and corrupted. This causes
the icon to fail to load for any feed whose icon URL uses percent-encoding in query
parameters.

What works and what doesn’t

Component Works? Notes
Feed icon URL with %3A / %2F in query :cross_mark: Mangled to 88A / 31F
Article content images in <content:encoded> :white_check_mark: Rendered fine in the internal browser pane
Same feed icon in other readers (FreshRSS, Inoreader, Liferea) :white_check_mark: No corruption at all
Feed XML source itself :white_check_mark: Contains the correct unmodified URL

Environment

  • OS: Microsoft Windows 11 Version 26H1 (Build 10.0.28120)
  • Akregator: 6.8.40 alpha (26.11.40)
  • KDE Frameworks: 6.27.0
  • Qt: 6.11.1 (built with 6.11.1)
  • Build ABI: x86_64-little_endian-llp64
  • Installation method: KDE CI nightly build, downloaded from
    Index of /ci-builds/pim/akregator/master/windows
    (package dated July 10, 2026)

Questions

  1. Has anyone else encountered this behavior?
  2. Is there an existing bug report for this?
  3. If not, would it be appropriate to file a bug on bugs.kde.org?

Any insights appreciated.