CVE-2026-11463
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 · uneditedA vulnerability was determined in USCiLab Cereal up to 1.3.2. Affected is an unknown function of the component Shared Pointer Handler. Executing a manipulation can lead to type confusion. The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure.
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 · moderate confidenceA type confusion vulnerability exists in USCiLab Cereal serialization library (versions up to 1.3.2) within the Shared Pointer Handler component. The vulnerability allows remote attackers to exploit the library by manipulating serialized data, potentially leading to arbitrary code execution or memory corruption due to improper type handling of shared pointers during deserialization.
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
- Low
- Integrity
- Low
- Availability
- Low
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
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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Locate Cereal library files in your projectSearch your project source code and dependencies for the Cereal header files (cereal.hpp or any cereal/ directory containing the library headers). Identify the include paths where Cereal headers are referenced.Affected if Cereal headers are present in your project dependencies
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Determine the installed Cereal versionOpen the main Cereal header file (typically cereal.hpp or version.hpp within the cereal directory) and locate the version definition. Common locations include a version macro like CEREAL_VERSION or CEREAL_VERSION_MAJOR/MINOR. Compare the version number to the affected range (versions up to 1.3.2).Affected if The version number is 1.3.2 or earlier
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Identify use of Shared Pointer serialization in your codeSearch your codebase for calls to Cereal serialization functions involving std::shared_ptr or boost::shared_ptr, such as calls to cereal::make_shared_pointer() or serialization functions that handle shared_ptr types being serialized.Affected if Your code serializes or deserializes shared pointers using Cereal
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Check if deserialization processes untrusted inputInspect the deserialization code paths that use Cereal. Determine whether the data being deserialized originates from untrusted sources such as network streams, files from external users, or user-uploaded content.Affected if Your application deserializes data from untrusted or external sources using Cereal's shared pointer handling
Your environment is affected if you use Cereal version 1.3.2 or earlier, deserialize shared pointers from untrusted data sources, and have Shared Pointer serialization enabled in your code.
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 dataUpgrade to Cereal version 1.3.3 or later which should contain the patch for this type confusion in the Shared Pointer Handler. If upgrading is not immediately possible, implement input validation and restrict network exposure to untrusted data sources.
- Consultation8.0 h
- Implementation16.0 h
- Testing12.0 h
- Review / QA6.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-11463 — 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-2026-11463 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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- Version or environment caveats, and links to real fixes
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