# CVE-2026-33897: GO-2026-4881 - Incus vulnerable to arbitrary file read and write through pongo templates in github.com/lxc/incus

Source: https://junglewise.ai/threats/cve-2026-33897-incus-vulnerable-to-arbitrary-file-read-and-write-through-pongo  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-04-07  
License: CC BY 4.0 with a link back

CVE-2026-33897 · Severity: low · CVSS 3.1 · Published 2026-04-07

Incus vulnerable to arbitrary file read and write through pongo templates in github.com/lxc/incus

Technologies: [github.com/lxc/incus (Go)](https://junglewise.ai/threats/technologies/github-com-lxc-incus), [github.com/lxc/incus/v6 (Go)](https://junglewise.ai/threats/technologies/github-com-lxc-incus-v6). Vendors: [Go](https://junglewise.ai/threats/vendors/go).

## Quick answers

**Is CVE-2026-33897 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-33897 being exploited in the wild.

**How severe is CVE-2026-33897?** Low severity, with a CVSS score of 3.1, published 7 April 2026.

**Which products and versions are affected?** github.com/lxc/incus (Go) SEMVER:introduced=0, SEMVER:introduced=0,last_affected=0.7.0; github.com/lxc/incus/v6 (Go) SEMVER:introduced=0,fixed=6.23.0.

**Is there a fix for CVE-2026-33897?** Yes. github.com/lxc/incus/v6 (Go): upgrade to 6.23.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2026-33897?** Check whether you run github.com/lxc/incus (Go) or github.com/lxc/incus/v6 (Go) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- github.com/lxc/incus/v6 (Go): upgrade to 6.23.0 or later

  ```sh
  go get github.com/lxc/incus/v6@v6.23.0
  ```


## Affected products

- github.com/lxc/incus (Go) SEMVER:introduced=0, SEMVER:introduced=0,last_affected=0.7.0
- github.com/lxc/incus/v6 (Go) SEMVER:introduced=0,fixed=6.23.0

## Identifiers

- CVE-2026-33897
- GHSA-83xr-5xxr-mh92
- GO-2026-4881

## Related threats

- [Incus project restriction bypass in instance copy](https://junglewise.ai/threats/cve-2026-55622-incus-project-restriction-bypass-in-instance-copy)
- [Incus authorization bypass in custom volume copy](https://junglewise.ai/threats/cve-2026-55621-incus-authorization-bypass-in-custom-volume-copy)
- [LXC Incus arbitrary file write via image hash path traversal](https://junglewise.ai/threats/cve-2026-48769-lxc-incus-arbitrary-file-write-via-image-hash-path-traversal)
- [LXC Incus nil-pointer dereference in CreateCustomVolumeFromBackup](https://junglewise.ai/threats/cve-2026-48756-lxc-incus-nil-pointer-dereference-in-createcustomvolumefrombackup)
- [LXC Incus argument injection in backup compression algorithm](https://junglewise.ai/threats/cve-2026-48755-lxc-incus-argument-injection-in-backup-compression-algorithm)