- Support resetting yearly stats and display the status of the current year in Achievements Plugin
- Correctly apply preprocessors on settings get and set when handling nested values
- Properly handle year changes during runtime in stats collection and auto fix stats affected by the underlying issue in Achievements Plugin
- Fix multi select on MacOS in Upload Manager Plugin to use Cmd+Click
- Fix shift select logic in Upload Manager Plugin to be more inline with common operating system file explorers
- Fix timing side-channel vulnerability in API key authentication that allowed extraction of API keys through network response time measurement
✋ Heads-ups
The heads-ups from previous 1.11.x releases still apply, please read their release notes as well for a full picture of what you should be aware of and what changed!
⛈ Issues while updating?
On every new OctoPrint release we see some people run into the same issues with outdated or broken environments all over again. If you encounter a problem during update, please check this collection of the most common issues encountered over the past couple of release cycles first, and test if the included fixes solve your problem.
♻ Changes
🔒 Security fixes
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Timing Side-Channel in API Key Authentication, severity Moderate (6.0): OctoPrint versions up to and including 1.11.5 are affected by a (theoretical) timing attack vulnerability that allows API key extraction over the network.
Due to using character based comparison that short-circuits on the first mismatched character during API key validation, rather than a cryptographical method with static runtime regardless of the point of mismatch, an attacker with network based access to an affected OctoPrint could extract API keys valid on the instance by measuring the response times of the denied access responses and guess an API key character by character.
The likelihood of this attack actually working is highly dependent on the network's latency, noise and similar parameters. An actual proof of concept was not achieved so far. Still, as always administrators are advised to not expose their OctoPrint instance on hostile networks, especially not on the public internet!
See also the GitHub Security Advisory and CVE-2026-23892
✨ Features & improvements
Achievements Plugin
- #5223: Support resetting the yearly stats & display the status of the current year.
🐛 Bug fixes
Core
- #5231: Correctly apply preprocessors on settings get & set when handling nested values.
Achievements Plugin
- #5223: Properly handle year changes during runtime in stats collection, which is also used for the Wrapped Plugin. Auto fix stats affected by the underlying issue.
Upload Manager Plugin
- #5216: Fix multi select on MacOS, now uses Cmd+Click.
- #5217: Fix shift select logic to be more inline with common operating system file explorers.
🎉 Special thanks to all the contributors!
Special thanks to everyone who contributed to this bugfix release!
Also a big thank you to @yueyueL for responsibly disclosing the security vulnerability fixed in this release.
🔗 More information
- Commits
- Release candidates:
- As this is a bugfix release, there were no release candidates