CVE-2026-43868
No exploitation reported by the sources we read.
- Published2026-05-05
- Fixed in0.23.0
- WeaknessCWE-1285 · CWE-789
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
Memory Allocation with Excessive Size Value vulnerability in Apache Thrift. This issue affects Apache Thrift: before 0.23.0. Users are recommended to upgrade to version 0.23.0, which fixes the issue.
Timeline
dates in UTC- 2026-05-0509:16CVE publishedNVD
Observed activity
isMalicious corpus · updated 2026-10-23 18:48 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2026-43868?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2026-43868?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD · OSV| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 0.23 | < 0.23.0 | 0.23.0 | NVD · OSV |
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Distribution builds and vendor advisories
Packages from OSV.dev and products from the vendors' CSAF advisories.
version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.
Vendor advisories
Apache Thrift: Apache Thrift: Denial of Service via excessive memory allocation
rhaiis/vllm-cpu-rhel9 as a component of Red Hat AI Inference Server · rhaiis/vllm-tpu-rhel9 as a component of Red Hat AI Inference Server · libthrift as a component of Red Hat build of Apache Camel 4 for Quarkus 3 · +3 more
Red Hat Security Advisory: RHOAI 2.25.9 - Red Hat OpenShift AI
Red Hat Security Advisory: Red Hat build of Apache Camel 4.18 for Quarkus 3.33 security update
Fix
- Update Apache thrift to 0.23.0
- Vendor fix Red Hat Product Security RHSA-2026:42644 · 2 productsFor Red Hat OpenShift AI 2.25.9 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this errata update: https://docs.redhat.com/en/documentation/red_hat_openshift_ai/
- Vendor fix Red Hat Product Security RHSA-2026:26586 · 1 productBefore applying the update, back up your existing installation, including all applications, configuration files, databases and database settings, and so on. The References section of this erratum contains a download link (you must log in to download the update).
- Workaround from the vendor Red Hat Product Security RHSA-2026:42644 · 205 productsMitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
- No fix available, says the vendor Red Hat Product Security CVE-2026-43868 · 3 productsAffected
- No fix planned, says the vendor Red Hat Product Security CVE-2026-43868 · 3 productsWill not fix
Advisories and patches
- lists.apache.orgVendor Advisory
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
Sources
- NVDCVE recordread 2026-10-23
- CISA-ADPSSVC decisionnone2026-05-05
- OpenCVESSVC decisionnone—
- CISA-ADPCVSS 3.15.32026-05-05
- CNACVSS 3.17.5read 2026-10-23
- CISA-ADPweakness (CWE)CWE-7892026-05-05
- CNAweakness (CWE)CWE-1285, CWE-789read 2026-10-23
- FIRST EPSSEPSS score1.2 %2026-10-22
- OSVaffected packages—
- Microsoft MSRCadvisory—
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Published
- 2026-05-05
- Last Modified
- 2026-07-21
- NVD status
- Modified
- MSRC Title
- Apache Thrift: Rust implementation vulnerable to CVE-2020-13949 pattern
Frequently asked questions
What is CVE-2026-43868?
Is CVE-2026-43868 actively exploited?
What is the CVSS score for CVE-2026-43868?
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