CVE-2015-8314 json
Devise Gem for Ruby Unauthorized Access Using "Remember Me" Cookie
published 2023-01-26 3 y ago modified 2026-06-17 4 mo ago also GHSA-746g-3gfp-hfhw , EUVD-2023-0374
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 49%
- public exploits
- 0
- none known
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.
Patch / fix
- rubygems devise 3.5.4
- heartcombo devise 3.5.4
- ruby-devise Debian 12 3.5.6-2
debian advisories DEBIAN-CVE-2015-8314
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.62% chance of exploitation in the next 30 days, higher than 49% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| GitHub | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| rubygems | devise | <3.5.4 |
3.5.4 |
Classification
References
-
github.com
/heartcombo/devise/commit/c92996646aba2d25b2c3e235fe0c4f1a84b70d24
web, patch
-
github.com
/advisories/GHSA-746g-3gfp-hfhw
advisory, patch, third-party-advisory
-
rubysec.com
/advisories/CVE-2015-8314/
third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2015-8314
advisory
-
github.com
/heartcombo/devise
package
-
github.com
/rubysec/ruby-advisory-db/blob/master/gems/devise/CVE-2015-8314.yml
web
-
rubysec.com
/advisories/CVE-2015-8314
web
-
blog.plataformatec.com.br
/2016/01/improve-remember-me-cookie-expiration-in-devise
web
Sources
- CVE List CVE-2015-8314
- GitHub Advisory GHSA-746g-3gfp-hfhw
- NVD CVE-2015-8314
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.