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CVE Record

CVE-2026-21696: Endless reprocessing/reupload of activity log data due to SQLite max parameters limit not being considered

Wings is the server control plane for Pterodactyl, a free, open-source game server management panel. Starting in version 1.7.0 and prior to version 1.12.0, Wings does not consider SQLite max parameter limit when processing activity log entries allowing for low privileged user to trigger a condition that floods the panel with activity records. After Wings sends activity logs to the panel it deletes the processed activity entries from the wings SQLite database. However, it does not consider the max parameter limit of SQLite, 32766 as of SQLite 3.32.0. If wings attempts to delete more than 32766 entries from the SQLite database in one query, it triggers an error (SQL logic error: too many SQL variables (1)) and does not remove any entries from the database. These entries are then indefinitely re-processed and resent to the panel each time the cron runs. By successfully exploiting this vulnerability, an attacker can trigger a situation where wings will keep uploading the same activity data to the panel repeatedly (growing each time to include new activity) until the panels' database server runs out of disk space. Version 1.12.0 fixes the issue.

HighCVSS 8.3Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2026-21696 affects Pterodactyl Wings, the server control plane for game servers. A low-privileged user can cause activity logs to be resent repeatedly to the panel. Over time, this can fill the panel database disk and disrupt service availability.

Executive priority

Prioritize remediation for production Pterodactyl environments because the issue can cause database disk exhaustion and service disruption. Upgrade scheduling should be prompt, especially for hosted or multi-user game server platforms.

Technical view

Wings versions 1.7.0 through before 1.12.0 fail to account for SQLite’s maximum parameter limit when deleting processed activity entries. If deletion exceeds the limit, no entries are removed. The cron job then reprocesses and reuploads the same activity data repeatedly, causing uncontrolled growth in the panel database.

Likely exposure

Organizations running Pterodactyl Wings versions >=1.7.0 and <1.12.0 are exposed, especially where low-privileged users can generate activity events. The impact is availability-focused, targeting panel database disk capacity rather than confidentiality or integrity.

Exploitation context

The advisory describes low-privileged network exploitation with no user interaction. The source bundle does not indicate public exploitation, and CISA KEV status is false. Treat as a practical denial-of-service risk where affected Wings deployments have active users generating activity logs.

Researcher notes

Root cause is unbounded batch deletion against SQLite variable limits, causing persistent retry of processed records. Sources identify affected versions and fixed version, but do not provide evidence of active exploitation or additional compensating controls beyond upgrading.

Mitigation direction

  • Upgrade Pterodactyl Wings to version 1.12.0 or later.
  • Review the GitHub security advisory for vendor guidance.
  • Monitor panel database disk usage until upgrade is complete.
  • Restrict unnecessary low-privileged access where operationally feasible.

Validation and detection

  • Inventory Wings versions across all nodes.
  • Confirm no deployment runs Wings >=1.7.0 and <1.12.0.
  • Review panel database growth for repeated activity log records.
  • Check Wings activity cron behavior after upgrading.
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

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ATT&CK lookup starting points

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cwe · low confidence lookup

CWE-400: Exact CWE lookup

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description · low confidence lookup

Database behavior lookup

The CVE wording references database injection or access, so collection and exfiltration review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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cve · low confidence lookup

CVE-2026-21696 mapping review

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Vulnerability profileCVE Program record
Severity
High
CVSS
8.3 (4.0)
Known Exploited
No
Published

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

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.

1CVSS vectors
0Timeline events
0ADP providers
4Source links

CVSS vector scores

1 official score

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
8.3CVSS 4.0HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H——Primary CVE score

Vulnerability scoring details

Base CVSS 4.0 score

8.3High
CVSS 4.0 vector shape for CVE-2026-21696Attack 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:N/VI:N/VA:H/SC:N/SI:N/SA:H

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
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
pterodactylwings>= 1.7.0, < 1.12.0Listed
Weakness

CWE details

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

CWE-400 · source CWE mapping

Uncontrolled Resource Consumption

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