CVE-2012-2374: tornadoweb tornado Improper Input Validation
CVSS: 5.0v2.0MediumModified
AliasesGHSA-f7fv-v9rh-prvcPYSEC-2012-5DEBIAN-CVE-2012-2374
Published 23-05-2012Last modified 06-08-2024
Vulnerability summary
CVE-2012-2374 is a medium (CVSS 5.0) Improper Input Validation vulnerability in tornadoweb tornado. EPSS estimates a 1.36% chance of exploitation in the next 30 days, higher than 71.2% of scored vulnerabilities.
CVSS score
5.0/10
010
Medium · v2.0 (NVD)EPSS score
1.36%
0%100%
Low · -0.01 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 23-05-2012PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
CRLF injection vulnerability in the tornado.web.RequestHandler.set_header function in Tornado before 2.2.1 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via crafted input.
CVSS metrics
3 scores · 2 sources · 3 versionsHigh 8.7Preferred score · OSV · Pypi (Ecosystem advisory) · calculated from vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:NSourcesSingle source
High 7.5Preferred score · OSV · Pypi (Ecosystem advisory) · calculated from vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:NSourcesSingle source
Medium 5.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:N/I:P/A:NSourcesSingle source
EPSS trend
Probability
1.36%
Chance of exploitation in the next 30 days
Percentile
71%
Versus all other CVEs
30-day change
-0.01 pp
From 1.37% on 19-09-2026
19-09-202619-10-2026
EPSS score1.36%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian1 product
- python-tornado< 2.1.0-3
PyPI1 product
- tornado< 2.2.1
Tornadoweb1 product
- tornado≤ 2.2 | 1.0 | 1.0.1 | 1.1 | 1.1.1 | 1.2 | 1.2.1 | 2.0 | 2.1 | 2.1.1
3 vendors · 3 products
