5.9

CVE-2026-66053: apache software foundation apache thrift

CVSS: 5.9v3.1MediumAnalyzed
AliasesGHSA-hwrj-9rr4-24xhBIT-thrift-2026-66053PYSEC-2026-3927
Published 27-07-2026Last modified 27-07-2026
Open JSON

Vulnerability summary

CVE-2026-66053 is a medium (CVSS 5.9) vulnerability in apache software foundation apache thrift. EPSS estimates a 0.29% chance of exploitation in the next 30 days, higher than 20.3% of scored vulnerabilities.

Overall risk
24/100
0100
Low · default modelHow is this calculated?
CVSS score
5.9/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.29%
0%100%
Low · +0.08 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1
RHSA-2026:49837

Timeline

  1. 27-07-2026
    PublishedVulnerability first disclosed.
  2. 27-07-2026
    Last modifiedVulnerability information updated.

Description

Improper Validation of Certificate with Host Mismatch vulnerability in Apache Thrift Python bindings. This issue affects Apache Thrift: before 0.24.0. Users are recommended to upgrade to version 0.24.0, which fixes the issue. This replaces CVE-2026-41603

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.29%

Chance of exploitation in the next 30 days

Percentile

20%

Versus all other CVEs

30-day change

+0.08 pp

From 0.21% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.29%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ubuntu2 products
  • python-thriftAll versions (No fix recorded)
  • thriftAll versions (No fix recorded)
Apache1 product
Apache software foundation1 product
Debian1 product
  • thriftAll versions (No fix recorded) | < 0.23.0-3
PyPI1 product
  • thrift< 0.24.0

5 vendors · 6 products

References

10 links