CVE-2026-88054Public exploit

Process crash via empty-stack model deserialization

Published Sep 10, 2026 · Updated Sep 10, 2026

Out-of-bounds read in Tesseract 5.5.3 and earlier allows local users to crash the process by loading a crafted .traineddata model. Plumbing::DeSerialize accepts a zero-length LSTM network stack, after which Series::CacheXScaleFactor dereferences stack_[0] and calls through an invalid pointer. Exploitation requires control over a model loaded during initialization, and the documented consequence is a deterministic process crash without data disclosure or code execution.

CVSS severity6.9
Medium
EPSS probability0.15%
Next 30 days · Sep 17, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in Tesseract 5.5.3 and earlier allows local users to crash the process by loading a crafted .traineddata model. Plumbing::DeSerialize accepts a zero-length LSTM network stack, after which Series::CacheXScaleFactor dereferences stack_[0] and calls through an invalid pointer. Exploitation requires control over a model loaded during initialization, and the documented consequence is a deterministic process crash without data disclosure or code execution.

The record

CVE
CVE-2026-88054
Published
Sep 10, 2026
Updated
Sep 10, 2026
Vendor
Tesseract OCR
Product
Tesseract
Classifications
CWE-824, CWE-125, T1499.004
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=<= 5.5.3

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Tesseract OCR · Tesseractversion=<= 5.5.3

Published CVSS scores

6.9GitHub_MCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 11, 2026Sep 17, 2026
Latest reporting daySep 17, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-824Access of Uninitialized Pointer
CWE-125Out-of-bounds Read
T1499.004Application or System Exploitation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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