VulnSocial

CVE-2026-34483Disclosure(apache / tomcat)

LOWCVSS 7.5 · HIGH

Signal is active with 1 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 Encoding or Escaping of Output vulnerability in the JsonAccessLogValve component of Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.20, from 10.1.0-M1 through 10.1.53, from 9.0.40 through 9.0.116. Users are recommended to upgrade to version 11.0.21, 10.1.54 or 9.0.117 , which fix the issue.

apache CVEsBack to dashboard
0.0/ 10 priority

Sources & remediation

Vendor / third-party advisories
Weakness type (CWE)
CWE-116

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

STABLE

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 2 observed days
  • Momentum state: stable

What's happening

  • Technical details provided in 1 signal
  • Disclosure: 1 classified signal
  • General: 1 classified signal
  • Peaked 1d ago at 1 mentions (2026-04-09); latest day: 1
  • 2 total mentions across 2 days

Affected systems

Vendors
apache
Products
tomcat

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-04-09: 1Mentions · 2026-04-10: 1Technical Details · 2026-04-09: 104-0904-10
Signal classification2 categories
Disclosure
150.0%
General
150.0%
Referenced assets2 URLs
Classification over time
DateTotalLabels
2026-04-091
Disclosure1
2026-04-101
General1
Full discourse2 posts
  • Kazuki Omo@omokazuki
    General

    SIOSセキュリティブログを更新しました。 Apache Tomcatの脆弱性(Important: CVE-2026-34486, Moderate: CVE-2026-34500, CVE-2026-32990, Low: CVE-2026-34487, CVE-2026-34483) #sios_tech #security #vulnerability #セキュリティ #脆弱性 #linux #tomcat #apache https://security.sios.jp/vulnerability/tomcat-security-vulnerability-20260410/

    Post summary

    A brief blog post lists several Apache Tomcat CVEs with severity labels, without providing PoC, exploit details, patches, or technical analysis.

    00010165
    361 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-34483 Improper Encoding or Escaping of Output vulnerability in the JsonAccessLogValve component of Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through … https://www.cve.org/CVERecord?id=CVE-2026-34483

    Post summary

    The post announces CVE-2026-34483 as an improper encoding/escaping issue in Tomcat's JsonAccessLogValve component, without providing PoC, exploit, or mitigation details, and directs readers to the CVE record.

    0000098
    57.0K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appapachetomcat---

Explore more

Back to dashboardapache CVEstomcat vulnerabilities