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CVE Record

CVE-2026-41935: Vvveb < 1.0.8.3 Uncontrolled Recursion Denial of Service

Vvveb before 1.0.8.3 contains an uncontrolled recursion vulnerability in the admin controller dispatch cycle where Base::init() repeatedly invokes permission() on error handlers, causing infinite recursion until PHP memory limits are exhausted. Attackers can send sustained requests to forbidden admin URLs from a low-privilege account to exhaust PHP memory on all workers and cause denial of service to legitimate traffic.

HighCVSS 7.1Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

A low-privilege Vvveb user can repeatedly request restricted administration pages and force the server into an endless processing loop. This consumes PHP memory and can disable all available workers, making the website unavailable to legitimate users. Vvveb versions before 1.0.8.3 are affected.

Executive priority

Treat this as a high-priority availability risk. Internet-accessible administration interfaces and environments issuing low-privilege accounts should be upgraded first. Although active exploitation is not established, successful abuse could interrupt customer-facing services by exhausting all PHP workers.

Technical view

The administration controller dispatch cycle allows Base::init() to repeatedly invoke permission() while processing error handlers. This uncontrolled recursion continues until PHP memory limits are exhausted. Sustained authenticated requests can consume every PHP worker, producing a remotely triggered denial of service. The CVSS 4.0 score is 7.1.

Likely exposure

Exposure is highest where a Vvveb administration interface running a version before 1.0.8.3 is network-accessible and attackers can obtain low-privilege accounts. Exploitation requires authentication but no user interaction, according to the supplied CVSS vector.

Exploitation context

The supplied record is not listed in CISA KEV and provides no evidence of active exploitation. Nevertheless, the described attack has low complexity and requires only low privileges, making service disruption plausible where vulnerable administration endpoints and accounts are accessible.

Researcher notes

The primary weakness is CWE-674 uncontrolled recursion; the record also maps CWE-209. The supplied affected-version metadata is sparse, so exact build exposure should be verified against the 1.0.8.3 release and referenced patch commit. No public exploitation evidence is included in the source bundle.

Mitigation direction

  • Upgrade Vvveb to version 1.0.8.3 or later using the vendor release guidance.
  • Confirm the deployed build includes commit c766e84b479dcf1bd1f25a44e4b9c9fa450769c8.
  • Temporarily limit administration-interface access to trusted users and networks until upgrading.
  • Monitor PHP worker memory and availability for signs of resource exhaustion.

Validation and detection

  • Inventory every Vvveb deployment and record its installed version or commit identifier.
  • Verify no deployment remains on a version earlier than 1.0.8.3.
  • Review logs for repeated requests to forbidden administration URLs from authenticated accounts.
  • Check monitoring history for PHP memory exhaustion, worker termination, or unexplained availability loss.
  • After upgrading, confirm normal permission-error handling without abnormal worker memory growth.
Prepared
Confidence
high
Sources
5

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · medium confidence lookup

CWE-209: Information exposure and cloud metadata lookup

Information exposure and SSRF weaknesses can make discovery, cloud metadata, and credential material review relevant. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cwe · low confidence lookup

CWE-674: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2026-41935 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
High
CVSS
7.1 (4.0)
Known Exploited
No
Published

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

2CVSS vectors
3Timeline events
1ADP providers
4Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: partial

CVSS vector scores

2 official scores

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
7.1CVSS 4.0HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:NVulnCheck
7.1CVSS 3.1HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H2.84.2VulnCheck

Vulnerability scoring details

Base CVSS 4.0 score

7.1High
CVSS 4.0 vector shape for CVE-2026-41935Attack VectorAttack ComplexityAttack RequirementsPrivileges RequiredUser InteractionVS ConfidentialityVS IntegrityVS AvailabilitySS ConfidentialitySS IntegritySS Availability

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Attack Requirements
NonePresent
Privileges Required
NoneLowHigh
User Interaction
NonePassiveActive
VS Confidentiality
HighLowNone
VS Integrity
HighLowNone
VS Availability
HighLowNone
SS Confidentiality
HighLowNone
SS Integrity
HighLowNone
SS Availability
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
givanzVvveb0, c766e84b479dcf1bd1f25a44e4b9c9fa450769c8affected
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-209 · source CWE mapping

Generation of Error Message Containing Sensitive Information

Generation of Error Message Containing Sensitive Information represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

CWE-674 · source CWE mapping

Uncontrolled Recursion

Uncontrolled Recursion represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.