If your Forgejo instance is running an affected release, upgrade it promptly. CVE-2026-89094 affects Forgejo versions before 16.0.4; the September 10, 2026, release report also identifies 15.0.8 as a fix for the 15.x line. The flaw let template expansion recreate a .git directory after Forgejo had removed it, so a later Git initialization could interpret attacker-controlled files as repository metadata.
Check the instance’s version and release branch, compare them with current supported patched releases, and investigate if an exposed affected instance may have been targeted. The advisory rates the vulnerability CVSS 3.1 at 9.9, but that severity rating does not establish that any particular instance was exploited.
What CVE-2026-89094 does
Forgejo’s template-repository workflow cloned a template, removed its .git directory, expanded variables in files listed by .forgejo/template, and then initialized a new Git repository. The expansion step could create another .git directory. Git initialization could then adopt that directory and its attacker-controlled repository metadata.
The key failure was operation order, not merely the presence of dangerous-looking text in a template. Removing .git before a later operation that can recreate it does not ensure the directory is absent when Git initializes the repository. The GitHub Advisory Database describes the issue as a critical remote-code-execution vulnerability and records a CVSS 3.1 score of 9.9, with a network attack vector, low attack complexity, low privileges required, no user interaction, changed scope, and high confidentiality, integrity, and availability impact. “Low privileges required” does not mean unauthenticated.
The Tool Desk
Outbyte PC Repair FREEClear out junk files and repair common Windows errorsFree Scan →Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →#1 Best Overall
- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
- Convert USB-A Ports to USB-C: Designed to connect USB-C earphones, cables, flash drives, card readers, and other USB-C accessories to standard USB-A ports. Plug-and-play with no drivers or software required.
- Aluminum Alloy Housing: Built with a sturdy aluminum alloy shell that aids in heat dissipation and protects against daily wear and scratches. Designed to maintain a stable and secure connection.
- Compact & Travel-Friendly: The ultra-compact design allows the adapter to stay plugged into your device without blocking adjacent ports or adding bulk, reducing wear and tear on your original USB ports.
- 12-Month Warranty: Backed by a 12-month manufacturer warranty for peace of mind. Designed to meet strict quality control standards for reliable everyday performance.
As quoted in LWN’s September 10, 2026, report, the Forgejo release statement says a malicious template repository could be used to “read arbitrary data from the Forgejo host, and to execute arbitrary processes on the Forgejo host.” The described impact is a potential capability of the flaw, not evidence that every vulnerable instance was compromised. GitHub Advisory Database entry · LWN report
Which Forgejo versions are affected, and which fix it?
The GitHub Advisory Database identifies Forgejo versions before 16.0.4 as affected. LWN reported that Forgejo 16.0.4 and 15.0.8 were released on September 10, 2026, to address the vulnerability. These are the reported minimum fix versions for those release lines, not a claim that they are the latest supported releases today.
Rank #2
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
- 90W Pass-Through Charging: Achieve optimal charging with 90W pass-through power to your laptop, supported by a total input of 100W, with the hub reserving 10W for operational efficiency. (Note: Wall charger not included.)
- Quick Data Transfers: Accelerate your productivity with rapid data transfers using a high-speed 5Gbps USB 3.0 port and two 480Mbps USB 2.0 ports.
- 4K HDMI Display: Enhance your visual experience with a hub capable of delivering 4K resolution at 30Hz in both mirror and extend modes. Please note that this hub is compatible with MacBook (macOS 12 and newer), Windows 10 and 11, ChromeOS, and laptops equipped with DP Alt Mode and Power Delivery. Note: This device is not compatible with Linux.
- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
Find the running instance’s version and branch, then upgrade to a current supported release that includes the fix. Use the official distribution, package, or container process for your deployment; upgrade steps differ by packaging and orchestration. Afterward, verify the running instance reports the intended patched version. GitHub Advisory Database entry · LWN report
How to check your Forgejo version
- Check the web interface. Look in the admin panel or the instance footer for the version, as described by the DEV article. Record the release line as well as the version number.
- Check the version API. Query your instance’s
/api/v1/versionendpoint and inspect the reported version. The DEV article describes this method; verify the endpoint’s current behavior against Forgejo documentation for your deployment. - Compare with current releases. Treat versions below 16.0.4 as affected, and versions below 15.0.8 on the 15.x line as needing an upgrade according to the September 2026 reporting. Check current official release information for the supported patched version on your branch.
DEV article on checking Forgejo’s version
How to audit an instance that may have been exposed
Use this sequence to establish exposure, protect evidence, and focus investigation on the impact described for the vulnerability. It is a defensive checklist, not a CVE-specific detection recipe; the sources cited here do not establish a validated log signature or detection rule.
Do these 3 things before closing this tab:
1Fix the driver behind crashes, sound loss and screen glitches2Clear out junk files and repair common Windows errors3Scan for outdated or missing drivers - takes under a minuteRank #3
- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
- Flawless 4K@60Hz Video with HDMI: Delivers exceptional clarity and smoothness with its 4K@60Hz HDMI port, making it ideal for high-definition presentations and entertainment. (Note: Only the HDMI port supports video projection; the USB-C port is for data transfer only.)
- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
- Record the running version and release line. Preserve the version information before making changes, and compare it with current official release information.
- Upgrade promptly. Follow the deployment’s appropriate official package, distribution, or container procedure. Verify the running instance reports the intended patched version after the upgrade.
- Assess who could use template generation. Determine whether the instance was reachable by untrusted or lower-trust users while affected, and whether those users could generate repositories from templates. The advisory’s vector indicates a network attack requiring low privileges; it does not say that an attacker needed no account.
- Preserve evidence before cleanup. If an affected instance was exposed, retain application, reverse-proxy, container, and host logs before removing files or rebuilding systems. Review repository-generation activity and look for unexpected host-side processes or file changes around relevant events.
- Scope the Forgejo runtime identity. Investigate the files, credentials, processes, and services accessible to the account running Forgejo. This follows from the reported potential for host data reads and process execution; it does not establish that credentials were stolen in a particular deployment.
- Review related security issues separately. Forgejo previously had a distinct template-repository symlink issue involving destinations outside the repository. The historical fixes cited for that issue were before 13.0.2 and, on the 11 LTS line, 11.0.7 and later. Those versions are not the fix boundary for CVE-2026-89094.
GitHub Advisory Database entry · LWN report · Forgejo Actions security documentation
What to do if an immediate upgrade is not possible
A secondary DEV article suggests disabling repository generation from templates as a temporary mitigation. This reduces functionality and should not be treated as a substitute for upgrading. Confirm the current configuration method against Forgejo’s documentation before changing settings; the cited material does not establish a current config-level procedure.
Rank #4
- Dual Converters, Infinite Potential：Includes 2× USB C male to USB A female adapters and 2× USB A male to USB C female adapters. Perfect for a wide range of uses—tablets with Bluetooth keyboards, expand USB ports on macbook, and more. Two different converters for all your daily needs
- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
- Upgraded Exquisite Craftsmanship: With an aluminum alloy housing and metal connector, the usbc to usb adapter is extremely durable and sturdy. Rigorously tested to withstand more than 10,000 times of plugging and unplugging, ensuring long-lasting performance
- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
Controls that limit account registration or repository creation can reduce general exposure, but they do not repair the vulnerable template workflow. Likewise, narrowing Actions runner registration scope or isolating runners addresses adjacent risks from Actions execution; it does not fix this template RCE. DEV article on Forgejo template generation · Forgejo Actions security documentation
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Why a generated .git directory is security-sensitive
A .git directory is not ordinary project content: Git treats it as repository control metadata. In this case, template expansion could write that metadata after an earlier cleanup step. When the subsequent initialization encountered it, Git could use it rather than treating the expanded output as inert files. The practical lesson is to consider generated filesystem paths in the context of what later tools will interpret, not only how those paths were created.
Quick Recap
Best Value
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
