LiveActive security incident?Get immediate response
CVE Record

CVE-2026-0897: Denial of Service in Keras via Excessive Memory Allocation in HDF5 Metadata

Allocation of Resources Without Limits or Throttling in the HDF5 weight loading component in Google Keras 3.0.0 through 3.13.0 on all platforms allows a remote attacker to cause a Denial of Service (DoS) through memory exhaustion and a crash of the Python interpreter via a crafted .keras archive containing a valid model.weights.h5 file whose dataset declares an extremely large shape.

HighCVSS 7.6Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

A malicious Keras model archive can make affected systems allocate excessive memory while loading weights, crashing the Python process. Business risk is service interruption in ML pipelines, model upload portals, notebooks, or automation that loads externally supplied .keras files.

Executive priority

Treat as high priority for ML services that process external models. It is primarily an availability risk, but a crash in shared ML infrastructure can interrupt customer workflows, batch processing, or internal analytics.

Technical view

CVE-2026-0897 is CWE-770 in Google Keras 3.0.0 through 3.13.0. The HDF5 weight-loading path may trust dataset shape metadata in a .keras archive, causing memory exhaustion and interpreter crash. CVSS is 7.6 with user interaction required.

Likely exposure

Exposure is most likely where Keras loads model archives from users, partners, CI jobs, model registries, or downloaded artifacts. Systems loading only internally built, trusted models have lower practical exposure.

Exploitation context

The bundle reports no CISA KEV listing and provides no evidence of active exploitation. Exploitation requires a crafted model archive to be loaded by a vulnerable Keras process, so social, workflow, or upload-path delivery matters.

Researcher notes

The source bundle is strong on vulnerability class and impact, but incomplete on exact fixed upstream version. The affected metadata also appears narrower than the narrative description, so verify against vendor advisories before final scoping.

Mitigation direction

  • Inventory Keras versions and prioritize 3.0.0 through 3.13.0.
  • Apply applicable Red Hat errata for packaged deployments.
  • Check Keras vendor guidance for the fixed upstream release.
  • Do not load untrusted .keras or HDF5 model artifacts.
  • Run model-loading jobs with memory limits and process isolation.

Validation and detection

  • Review dependency locks, containers, and notebooks for vulnerable Keras versions.
  • Map services that accept or import external model archives.
  • Confirm upload pipelines quarantine untrusted model artifacts before loading.
  • Verify model-loading workers have enforced memory limits.
  • Check monitoring for Python worker crashes during model import.
Prepared
Confidence
medium
Sources
9

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 · low confidence lookup

CWE-770: 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-2026-0897 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
7.6 (3.1)
Known Exploited
No
Published

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

2CVSS vectors
5Timeline events
2ADP providers
8Source 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
7.6CVSS 3.1HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H2.84.7redhat-SADP
7.1CVSS 4.0HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N——Google

Vulnerability scoring details

Base CVSS 4.0 score

7.1High
CVSS 4.0 vector shape for CVE-2026-0897Attack VectorAttack ComplexityAttack RequirementsPrivileges RequiredUser InteractionVS ConfidentialityVS IntegrityVS AvailabilitySS ConfidentialitySS IntegritySS Availability

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/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. ADP timelineredhat-SADP

    Made public.

  3. CVE publishedCVE Program

    The CVE record was published.

  4. ADP timelineredhat-SADP

    Reported to Red Hat.

  5. CVE updatedCVE Program

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

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc
redhat-SADPKeras: Keras: Denial of Service via crafted HDF5 weight loading file
other:Red Hat severity ratingcvssV3_1
  • 2026-01-15T16:01:16.399Z: Reported to Red Hat.
  • 2026-01-15T14:09:53.603Z: Made public.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
GoogleKeras3.0.0unaffected
Weakness

CWE details

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

CWE-770 · source CWE mapping

Allocation of Resources Without Limits or Throttling

Allocation of Resources Without Limits or Throttling represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.