CVE-2026-32990VulnerabilityPublished 8 Sep 2026Updated 22 Oct 2026

SUSE tomcat · Security update for tomcat11

Affects SUSE tomcatSource GCVE Database

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Authoritative record:CVE-2026-32990· Medium 5.3

Not known to be exploited · CVSS 5.3 Medium : upgrade SUSE tomcat to 11.0.25 when convenient.

Data as of 31 Oct 2026, 20:20 UTC

CVSS 3.1 base score

5.3Medium

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.3% chance of exploitation in 30 days – higher than 23% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 11.0.25

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: None
Scope: Unchanged
Confidentiality: Low
Integrity: None
Availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: Low: There is some loss of confidentiality. Access to some restricted information is obtained, but the attacker does not have control over what information is obtained, or the amount or kind of loss is limited. The information disclosure does not cause a direct, serious loss to the impacted component.
Integrity: None: There is no loss of integrity within the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 9 Apr 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 31 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade org.apache.tomcat/tomcat to 11.0.25.

Affected software

Product	Affected	Fixed in
Mavenorg.apache.tomcat/tomcat`pkg:maven/org.apache.tomcat/tomcat`Other threats	Affected <11.0.25	Fixed in 11.0.25

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A security update is available that addresses all listed vulnerabilities by upgrading to Tomcat version 11.0.25. Users should apply this update promptly to mitigate the risks. No additional vendor advisories indicate that no action is required or that these issues are already mitigated. Patch status is confirmed by the availability of this update.

Description

This security update for Tomcat 11 addresses multiple vulnerabilities including security constraint bypass, TOCTOU issues with Unix Domain Socket permissions, incomplete HTTP/2 SNI validation fixes, replay attacks with DIGEST authentication, access control bypasses, memory exhaustion via WebSocket, role reference bypasses, and denial-of-service via HTTP/2 stream reset. The update also includes fixes for session management, authentication, and configuration parsing errors. These vulnerabilities collectively pose risks of unauthorized access, denial of service, and potential privilege escalation. The update corresponds to Tomcat version 11.0.25.

Impact

The vulnerabilities fixed in this update could allow attackers to bypass security constraints, perform replay attacks, bypass access controls, cause denial-of-service conditions, and potentially escalate privileges or maintain unauthorized sessions. These issues affect the security posture of applications running on Tomcat 11, potentially exposing sensitive data or disrupting service availability.

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Affected software

Description

AI analysisMachine-generated, updated 17 Sep 2026, 02:05 UTC

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