CVE-2026-33176
HIGH7.5EPSS 0.03%Rails Active Support has a possible DoS vulnerability in its number helpers
發布日:2026/3/23修改日:2026/5/13
描述
### Impact Active Support number helpers accept strings containing scientific notation (e.g. `1e10000`), which when converted to a string could be expanded into extremely large decimal representations. This can cause excessive memory allocation and CPU consumption when the expanded number is formatted, possibly resulting in a DoS vulnerability. ### Releases The fixed releases are available at the normal locations. ### Credit This issue was responsibly reported by Hackerone researcher [manun](https://hackerone.com/manun).
受影響套件(2)
- Debian/railsfrom 0
- RubyGems/activesupport>= 8.1.0.beta1, < 8.1.2.1
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U |
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
參考連結(11)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2026-33176
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2026-33176
- PATCHhttps://github.com/rails/rails
- WEBhttps://github.com/rails/rails/commit/19dbab51ca086a657bb86458042bc44314916bcb
- WEBhttps://github.com/rails/rails/commit/ebd6be18120d1136511eb516338e27af25ac0a1a
- WEBhttps://github.com/rails/rails/commit/ee2c59e730e5b8faed502cd2c573109df093f856
- WEBhttps://github.com/rails/rails/releases/tag/v7.2.3.1
- WEBhttps://github.com/rails/rails/releases/tag/v8.0.4.1
- WEBhttps://github.com/rails/rails/releases/tag/v8.1.2.1
- WEBhttps://github.com/rails/rails/security/advisories/GHSA-2j26-frm8-cmj9
- WEBhttps://github.com/rubysec/ruby-advisory-db/blob/master/gems/activesupport/CVE-2026-33176.yml