Hard-coded Flask secret key in OctoPrint
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-321.
Summary
OctoPrint versions 1.0.0 and 1.1.0 use a hard-coded cryptographic key in the Flask Secret Key Handler (CWE-321). A remote attacker with no privileges and no user interaction can exploit this low-complexity flaw.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
A security vulnerability has been detected in OctoPrint 1.0.0/1.1.0. Affected is an unknown function of the component Flask Secret Key Handler. Such manipulation leads to use of hard-coded cryptographic key . The attack may be performed from remote. Upgrading to version 1.11.1 is able to address this issue. The name of the patch is b4699825d6ab92d5451e5b1e3a06dfb81f86e777. The affected component should be upgraded.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | OctoPrint | 1.0.0; 1.1.0 | 1.11.1 | Patch available | CNA |
- OctoPrint Vendor— Affected 1.0.0; 1.1.0 Fixed in 1.11.1 Patch available CNA
Remediation
Upgrade OctoPrint to version 1.11.1, which fixes the issue with patch b4699825d6ab92d5451e5b1e3a06dfb81f86e777.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
- Fix · CNA OctoPrint Fixed in 1.11.1
Timeline
- 2026-10-26 Threatist record created from CVE-2014-125135
- 2026-10-26 CISA SSVC decision points changed
- 2026-10-26 Priority changed: MEDIUM → LOW
- 2026-10-27 Alias added: GHSA-hm3x-g6w7-68c6
References
Sources
- CVE-2014-125135 · CVE Program
- CVE-2014-125135 · NVD
- FIRST EPSS
- GHSA-hm3x-g6w7-68c6 · GitHub Advisory Database · CC BY 4.0
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