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Fencer Intel
medium 6.5

CVE-2010-3299 json

The encrypt/decrypt functions in Ruby on Rails 2.3 are vulnerable to padding oracle attacks.

published 2019-11-12 6 y ago modified 2026-06-16 4 mo ago also EUVD-2010-3298

cvss
6.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.1%
EPSS 1.1% chance of exploitation in 30 days, percentile 66%
public exploits
0
none known

Summary

The encrypt/decrypt functions in Ruby on Rails 2.3 are vulnerable to padding oracle attacks.

Exploit prediction

1.14% chance of exploitation in the next 30 days, higher than 66% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • usenix.org https://www.usenix.org/legacy/events/woot10/tech/full_papers/Rizzo.pdf referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:P/I:N/A:N

Affected products

  • rails rails

Classification

Weakness
  • CWE-311 Missing Encryption of Sensitive Data
Technology feeds

References

Sources

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.