CVE-2011-1005

5.0 MEDIUM 3% exploit odds Fix listed

What it is

The safe-level feature in Ruby 1.8.6 through 1.8.6-420, 1.8.7 through 1.8.7-330, and 1.8.8dev allows context-dependent attackers to modify strings via the Exception#to_s method, as demonstrated by changing an intended pathname.

At a glance

Exploitability: Can be exploited over the network without logging in. Limited direct impact.
Exploit odds: 2.8% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2011-03-02 20:00 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-16 23:28 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 2.8% in the next 30 days (EPSS).
Severity: 5.0 MEDIUM (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2011-03-02 20:00 UTC
Last modified: 2026-06-16 23:28 UTC
Exploit probability: 2.8% · EPSS, next 30 days
Weakness: CWE-264
Record status: Modified

Affected

ruby-lang Ruby 1.8.6
ruby-lang Ruby 1.8.6-420
ruby-lang Ruby 1.8.7
ruby-lang Ruby 1.8.7-330
ruby-lang Ruby 1.8.8

Attack profile CVSS 2.0 · 5.0

Attack vector: Network
Complexity: Low
Authentication: None
Confidentiality: None
Integrity: Partial
Availability: None

Raw vector

AV:N/AC:L/Au:N/C:N/I:P/A:N

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2011-1005.md and follow it. Check whether this project is affected by CVE-2011-1005. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record