The Devise gem before 3.5.4 for Ruby mishandles Remember Me cookies for sessions, which…
Priority MEDIUM 40CWE-312Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure, Security bypass
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub. Impact type from CWE-312 and CWE-288.
Summary
The Devise gem before 3.5.4 for Ruby mishandles Remember Me cookies for sessions, which may allow an adversary to obtain unauthorized persistent application access.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00618 49th percentileScored 2026-11-07
Fix Fixed devise (RubyGems): 3.5.4
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 |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | devise (RubyGems) | before 3.5.4 | 3.5.4 | Patch available | GHSA-746g-3gfp-hfhw |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- devise (RubyGems) Vendor— Affected before 3.5.4 Fixed in 3.5.4 Patch available GHSA-746g-3gfp-hfhw
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:heartcombo:devise:*:*:*:*:*:ruby:*:* | before 3.5.4 | Vulnerable | heartcombo |
- cpe:2.3:a:heartcombo:devise:*:*:*:*:*:ruby:*:* Versions before 3.5.4 Vulnerable ·heartcombo
Remediation
- Fix · GHSA-746g-3gfp-hfhw devise (RubyGems) Fixed in 3.5.4 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2015-8314
- 2026-10-03 Alias added: GHSA-746g-3gfp-hfhw
References
Patch 2
Advisory 2
More heartcombo Devise vulnerabilities
- TI-2026-25192 Devise has a confirmable "change email" race condition that permits user to confirm email they have no access to CVSS 4.0MEDIUM 6.0
- TI-2026-29075 Devise: Open Redirect via Unvalidated `request.referrer` in Timeoutable Session Timeout Handler CVSS 3.1MEDIUM 6.1
Sources
- CVE-2015-8314 · CVE Program
- CVE-2015-8314 · NVD
- FIRST EPSS
- GHSA-746g-3gfp-hfhw · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences