RHLW-2026-b11abda52745af4c

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Source
https://github.com/project-lightwell/lightwell-osv/blob/main/advisories/RHLW-2026-b11abda52745af4c.json
Import Source
https://github.com/project-lightwell/lightwell-osv/blob/main/advisories/RHLW-2026-b11abda52745af4c.json
JSON Data
https://api.osv.dev/v1/vulns/RHLW-2026-b11abda52745af4c
Upstream
Published
2026-10-19T14:27:21Z
Modified
2026-10-27T08:45:03Z
Severity
  • 7.1 (High) CVSS_V4 - 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 CVSS Calculator
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Lightwell Security Advisory: tokenizers 0.23.1+rhlw.1
Details

Red Hat Lightwell has released tokenizers 0.23.1+rhlw.1 with a backported security fix.

CVE-2026-85670: tokenizers BpeBuilder Buffer Overflow via merge token

This patched artifact is a drop-in replacement for tokenizers 0.23.1 from PyPI.

References
Credits
    • Red Hat Lightwell - REMEDIATION_DEVELOPER

Affected packages

Red Hat Lightwell:PyPI / tokenizers

Package

Name
tokenizers
Purl
pkg:pypi/tokenizers

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0.23.1+rhlw.1

Affected versions

0.*
0.0.1
0.0.2
0.0.3
0.0.4
0.0.5
0.0.6
0.0.7
0.0.8
0.0.9
0.0.10
0.0.11
0.0.12
0.0.13
0.1.0
0.1.1
0.2.0
0.2.1
0.3.0
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.5.2
0.6.0
0.7.0
0.8.0.dev0
0.8.0.dev1
0.8.0.dev2
0.8.0rc1
0.8.0rc2
0.8.0rc3
0.8.0rc4
0.8.0
0.8.1rc1
0.8.1rc2
0.8.1
0.9.0.dev0
0.9.0.dev1
0.9.0.dev2
0.9.0.dev3
0.9.0.dev4
0.9.0rc1
0.9.0rc2
0.9.0
0.9.1
0.9.2
0.9.3
0.9.4
0.10.0
0.10.1
0.10.2
0.10.3
0.11.0
0.11.1
0.11.2
0.11.3
0.11.4
0.11.5
0.11.6
0.12.0
0.12.1
0.13.0
0.13.1
0.13.2
0.13.3
0.14.0
0.14.1
0.15.0
0.15.1
0.15.2
0.19.0
0.19.1
0.20.0
0.20.1
0.20.2
0.20.3
0.20.4rc0
0.20.4
0.21.0rc0
0.21.0
0.21.1rc0
0.21.1
0.21.2rc0
0.21.2
0.21.4
0.22.0rc0
0.22.0
0.22.1rc0
0.22.1
0.22.2rc0
0.22.2
0.23.0rc0
0.23.1rc0
0.23.1

Database specific

lightwell 
{
    "backport_base_version":  "0.23.1",
    "remediated_version":  "0.23.1+rhlw.1",
    "repository_url":  "https://packages.redhat.com/lightwell/python/remediated/"
}
source 
"https://github.com/project-lightwell/lightwell-osv/blob/main/advisories/RHLW-2026-b11abda52745af4c.json"