CVE-2012-2374

NONECVSS 0.0Trending — 3 sources updated this week

0.0

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 v3: —
EG Score: 0.0(none)
EPSS: 56.1%
KEV: Not listed

Published

May 23, 2012

Last Modified

April 29, 2026

References (10)

secalert@redhathttp://openwall.com/lists/oss-security/2012/05/18/12
secalert@redhathttp://secunia.com/advisories/49185
secalert@redhathttp://www.openwall.com/lists/oss-security/2012/05/18/6
secalert@redhathttp://www.securityfocus.com/bid/53612
secalert@redhathttp://www.tornadoweb.org/documentation/releases/v2.2.1.html
af854a3a-2127-422b-91ae-364da2661108http://openwall.com/lists/oss-security/2012/05/18/12
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/49185
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2012/05/18/6
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/53612
af854a3a-2127-422b-91ae-364da2661108http://www.tornadoweb.org/documentation/releases/v2.2.1.html

Affected Packages

(1 across 1 ecosystem)

PyPI(1)

Package	Vulnerable range	Fixed in	Dependents
tornado	0.2 ... 2.2 (10 versions)	2.2.1	—

Data Freshness Timeline

(refreshed 12× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:10 UTCepss_batch
2026-06-02 20:10 UTCepss_batch
2026-06-01 13:49 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-29 13:41 UTCepss_batch
2026-05-29 04:30 UTCEG score recompute
2026-05-28 16:36 UTCOSV refresh
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-26 13:41 UTCepss_batch
2026-05-26 13:41 UTCepss_batch
2026-05-26 07:16 UTCepss_batch
2026-05-26 07:16 UTCepss_batch
2026-05-26 07:16 UTCepss_batch
2026-05-24 16:43 UTCepss_batch

Frequently asked(4)

What is CVE-2012-2374?

CVE-2012-2374 is a none vulnerability published on May 23, 2012. 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.

When was CVE-2012-2374 disclosed?

CVE-2012-2374 was first published in the National Vulnerability Database on May 23, 2012, with the most recent update on April 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2012-2374 actively exploited?

CVE-2012-2374 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 56.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

How do I remediate CVE-2012-2374?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2012-2374, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2012-2374

📅 Published

🔄 Last Modified

🔗 References (10)