PatchTheCVECVE-2015-1828: The Ruby http gem before 0.7.3 does not verify hostnames in SSL connections, which might allow remote attacker
CVE-2015-1828 is a medium-severity flaw (CVSS 5.9) affecting http.rb. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
The Ruby http gem before 0.7.3 does not verify hostnames in SSL connections, which might allow remote attackers to obtain sensitive information via a man-in-the-middle-attack.
Why this priority
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 5.9 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | High |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 1.5% (top 25%) |
| CISA exploited list | No |
| Weakness | CWE-200 |
| Published | 2017-10-06 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2015-1828?
http.rb: upgrade to newer than 0.7.2. Exact commands for each OS are on this page.
Is CVE-2015-1828 being exploited?
CVE-2015-1828 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2015-1828 affect?
CVE-2015-1828 affects http.rb. Severity is medium (CVSS 5.9). The Ruby http gem before 0.7.3 does not verify hostnames in SSL connections, which might allow remote attackers to obtain sensitive information via a man-in-the-middle-attack.
How urgent is CVE-2015-1828?
Priority 44/100. Remotely exploitable, no login, no user action