HOMEVULNERABILITIESCVE-2026-43870
HIGH

CVE-2026-43870

CWE-22Published: May 5, 2026· Updated: May 6, 2026

7.3
CVSS v3.1
EPSS:0.01%probability of exploitation in 30 daysPercentile:0.3th

Official Description

Origin Validation Error, Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'), Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting'), Uncontrolled Resource Consumption 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.

NVD Source

Technical Analysis

CVE-2026-43870 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityLow
AvailabilityLow
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Affected Vendors & Products

Apache1 product
thrift
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://lists.apache.org/thread/pgtfq44ltc9t63kxcbqmwqzt45pnhqdy
ADVISORYhttp://www.openwall.com/lists/oss-security/2026/05/05/4

All References (2)

→
https://lists.apache.org/thread/pgtfq44ltc9t63kxcbqmwqzt45pnhqdyVendor Advisory
→
http://www.openwall.com/lists/oss-security/2026/05/05/4Mailing List · Third Party Advisory

Quick Facts

CVE IDCVE-2026-43870
CVSS Score7.3 / 10
SeverityHIGH
WeaknessCWE-22
CISA KEVNo
EPSS (30d)0.01%
Affected1 vendor
PublishedMay 5, 2026

Related CVEs (CWE-22)

CVE-2026-41211
10.0
CVE-2026-2731
10.0
CVE-2026-48282
KEV10.0
CVE-2026-54917
10.0
CVE-2026-34909
KEV10.0
CVE-2026-11420
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-43870 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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