cve.bz

CVE-2023-34981

7.5 highEPSS 1.1%

High (7.5) in apache tomcat. EPSS 1.1% chance of exploitation in the next 30 days. Fixed in org.apache.tomcat.embed:tomcat-embed-core 10.1.9, 11.0.0-M6, 9.0.75.

A regression in the fix for bug 66512 in Apache Tomcat 11.0.0-M5, 10.1.8, 9.0.74 and 8.5.88 meant that, if a response did not include any HTTP headers no AJP SEND_HEADERS messare woudl be sent for the response which in turn meant that at least one AJP proxy (mod_proxy_ajp) would use the response headers from the previous request leading to an information leak.

Severity

CVSS 3.1

7.5 high
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS
1.1% chance of exploitation in the next 30 days; higher than 66% of CVEs (scores of 2026-10-31)
CWE
CWE-732
Published
Modified
Record from
the NVD, synced

Affected

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-mppv-79ch-vw6qMavenorg.apache.tomcat.embed:tomcat-embed-core>=11.0.0-M5 <11.0.0-M611.0.0-M6
GHSA-mppv-79ch-vw6qMavenorg.apache.tomcat.embed:tomcat-embed-core>=10.1.8 <10.1.910.1.9
GHSA-mppv-79ch-vw6qMavenorg.apache.tomcat.embed:tomcat-embed-core>=9.0.74 <9.0.759.0.75
GHSA-mppv-79ch-vw6qMavenorg.apache.tomcat:tomcat-coyote>=8.5.88 <8.5.898.5.89

References

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