Get a Demo

Let's Patch It!

Book a short call with one our specialists, we'll walk you through how Endor Patches work, and ask you a few questions about your environment (like your primary programming languages and repository management). We'll also send you an email right after you fill out the form, feel free to reply with any questions you have in advance!

CVE

CVE-2026-67429

Flyto2 Core: Arbitrary file write via image.download (and other file-writing modules)
Back to all
CVE

CVE-2026-67429

Flyto2 Core: Arbitrary file write via image.download (and other file-writing modules)

Flyto2 Core is an execution kernel for automation and AI-agent workflows. Prior to 2.26.6, image.download and related file-writing modules use caller-controlled outputdir instead of validatepathwithenvconfig and its FLYTOSANDBOX_DIR confinement, allowing attacker-controlled response bytes to be written to arbitrary filesystem paths the process can access. This issue is fixed in version 2.26.6.

Package Versions Affected

Package Version
patch Availability
No items found.

Automatically patch vulnerabilities without upgrading

Fix Without Upgrading
Detect compatible fix
Apply safe remediation
Fix with a single pull request

CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
10
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H
C
H
U
-

Related Resources

No items found.

References

https://github.com/flytohub/flyto-core/releases/tag/v2.26.6, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67429.json, https://github.com/flytohub/flyto-core/security/advisories/GHSA-2956-977x-2w3r, https://nvd.nist.gov/vuln/detail/CVE-2026-67429, https://github.com/flytohub/flyto-core/commit/d5f89d71303e3c1e6418d347c5c55fcd173cc8cc

Severity

10

CVSS Score
0
10

Basic Information

Base CVSS
10
EPSS Probability
0.00488%
EPSS Percentile
0.40511%
Introduced Version
0
Fix Available
2471c6e774102fcca21c61eb66cae057c0f0cecf

Fix Critical Vulnerabilities Instantly

Secure your app without upgrading.
Fix Without Upgrading