CVE-2026-55955Disclosure(apache / tomcat)

LOWCVSS 6.5 · MEDIUM

Signal is active with 2 mentions in latest observed window

Immediate actions

Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

Improper Authentication vulnerability in Apache Tomcat allowed a replay attack against the EncryptionInterceptor in the cluster component. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from 9.0.13 through 9.0.18, from 8.5.38 through 8.5.100, from 7.0.100 through 7.0.109. Users are recommended to upgrade to version 11.0.23, 10.1.56, 9.0.119, which fixes the issue.

apache CVEs Back to dashboard

0.0/ 10 priority

Sources & remediation

Vendor / third-party advisories

Weakness type (CWE)

CWE-287

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

tomcat

Threat summary

2 mentions across 1 observed day

What's happening

Technical details provided in 1 signal
Disclosure: 2 classified signals
2 total mentions across 1 day

Affected systems

Vendors

apache

Products

tomcat

Deep dive

Activity timeline2 mentions / 1d

Signal classification1 categories

Disclosure

2100.0%

Referenced assets3 URLs

By indicator

Full discourse2 posts

Kazuki Omo@omokazuki91d
Disclosure
Apache Tomcatの脆弱性(Important: CVE-2026-55957, Moderate: CVE-2026-55956, Low: CVE-2026-55955, CVE-2026-55276, CVE-2026-53434, CVE-2026-53404, CVE-2026-50229) #sios_tech #security #vulnerability #セキュリティ #脆弱性 #linux #tomcat #mod_jk #apache https://security.sios.jp/vulnerability/tomcat-security-vulnerability-20260630/
Post summary
The tweet announces several newly disclosed Apache Tomcat CVEs, indicating their severity levels, but offers no PoC, exploit code, active‑use evidence, patch information, or detailed technical descriptions.
00010149
369 followersView on X
Vulmon Vulnerability Feed@VulmonFeeds91d
Disclosure
CVE-2026-55955 Replay Attack via Improper Authentication in Apache Tomcat EncryptionInt... https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-55955 Vulnerability Notification: https://alerts.vulmon.com/?utm_source=twitter&utm_medium=social&utm_campaign=2102281&utm_content=3
Post summary
The tweet is a disclosure notice for CVE‑2026‑55955, a replay‑attack via improper authentication in Apache Tomcat, directing readers to detailed vulnerability pages.
00000108
4.1K followersView on X

CPE platform detail1 entries

Part:

Vendor:

Product:

Version:

Target SW:

Target HW:

1 of 1 entries

Part	Vendor	Product	Version	Target SW	Target HW
App	apache	tomcat	-	-	-

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