CVE-2026-22904
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedImproper length handling when parsing multiple cookie fields (including TRACKID) allows an unauthenticated remote attacker to send oversized cookie values and trigger a stack buffer overflow, resulting in a denial‑of‑service condition and possible remote code execution.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceA stack buffer overflow vulnerability exists in the cookie parsing logic (specifically the TRACKID field) due to improper length handling. An unauthenticated remote attacker can send oversized cookie values that exceed buffer boundaries, causing denial of service and potentially achieving remote code execution.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify the application that handles TRACKID cookiesReview your web server, application server, or middleware logs to identify the product/service that processes HTTP cookie headers. Look for the specific software name in process lists or service configurations.Affected if The identified product processes cookie headers including a TRACKID field and is the software associated with this vulnerability.
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Determine the installed software versionUse the package manager, binary version flags, or check the application's about/version page. Common commands: dpkg -l, rpm -qi, or the application's CLI version flag.Affected if The installed version matches or falls within an affected range where the vulnerability exists (if a fix version becomes available, any version before that fix is potentially vulnerable).
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Verify cookie parsing is enabledInspect the application configuration files for cookie-related settings. Check if the TRACKID cookie functionality is actively used in the web application or API.Affected if Cookie parsing for the TRACKID field is enabled and the application accepts cookie headers from remote clients.
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Inspect cookie handling configurationReview configuration files (often in /etc, /conf, or application-specific directories) for cookie parsing settings. Look for any max-length parameters or validation rules related to the TRACKID field.Affected if No explicit maximum length limit is configured for cookie values, or the TRACKID field lacks input validation settings.
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Check application logs for anomalous cookie activityReview web access logs and application logs for requests with unusually large cookie values, especially those containing TRACKID. Look for truncation patterns or errors related to cookie parsing.Affected if Logs show truncated cookie values, parsing errors, or crashes coinciding with requests containing the TRACKID cookie.
You are affected if the application processes TRACKID cookie values without proper bounds checking and accepts cookie input from unauthenticated remote sources.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataImplement proper bounds checking and length validation when parsing cookie values, particularly for the TRACKID field. Consider imposing maximum length limits on cookie values and using safe string handling functions.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2026-22904 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-22904 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data