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Fencer Intel
medium 6.3

CVE-2026-94638 json

Apache Thrift: PHP `thrift_protocol` C extension ignores the configured `maxStringSize`

published last mo. modified last mo. also BIT-thrift-2026-94638 , EUVD-2026-91562

cvss
6.3
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 20%
public exploits
0
none known

Summary

Allocation of resources without limits or throttling vulnerability in Apache Thrift PHP bindings.

This issue affects Apache Thrift: before 0.25.0.

Users are recommended to upgrade to version 0.25.0, which fixes the issue.

Patch / fix

  • bitnami thrift 0.25.0
  • Apache Software Foundation Apache Thrift 0.25.0
  • thrift hummingbird 1 0.25.0-0.1.hum1
  • thrift-qt hummingbird 1 0.25.0-0.1.hum1
  • perl-thrift hummingbird 1 0.25.0-0.1.hum1
  • thrift-glib hummingbird 1 0.25.0-0.1.hum1
  • python3-thrift hummingbird 1 0.25.0-0.1.hum1

red hat advisories RHSA-2026:74369

Is CVE-2026-94638 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-94638 updated cvss 5.3

thrift: Apache Thrift: Denial of Service via uncontrolled resource allocation in PHP bindings

  • Red Hat Ceph Storage 7 thrift Red Hat Ceph Storage 8 thrift, thrift-qt, perl-thrift, thrift-glib, python3-thrift
    affected: no fix available “Fix deferred”
  • Red Hat Ceph Storage 9 thrift
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux AI (RHEL AI) 3 thrift
    affected: no fix available “Fix deferred”
  • Red Hat Hardened Images thrift 0.25.0-0.1.hum1, thrift-qt 0.25.0-0.1.hum1, perl-thrift 0.25.0-0.1.hum1, thrift-glib 0.25.0-0.1.hum1, python3-thrift 0.25.0-0.1.hum1
    fixed: vendor fix RHSA-2026:74369

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
last mo.

Exploit prediction

0.28% chance of exploitation in the next 30 days, higher than 20% of all scored CVEs (FIRST EPSS, 2026-11-11).

CVSS scores

assigned by version score vector
CNA 4.0 6.3 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
CNA 4.0 6.3 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected packages

ecosystem package affected fixed in
bitnami thrift
<0.25.0
0.25.0

Affected products

  • Apache Software Foundation Apache Thrift

Classification

Weakness
  • CWE-770 Allocation of Resources Without Limits or Throttling

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.