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CVE Record

CVE-2026-41602: Apache Thrift: Go TFramedTransport uint32 overflow

Integer Overflow or Wraparound vulnerability in Apache Thrift TFramedTransport Go language implementation This issue affects Apache Thrift: before 0.23.0. Users are recommended to upgrade to version 0.23.0, which fixes the issue.

HighCVSS 7.5Not KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

A remote, unauthenticated attacker may be able to disrupt services using Apache Thrift’s Go TFramedTransport. The flaw can cause an integer value to wrap, creating an availability risk rather than a confidentiality or data-integrity risk. Apache Thrift versions before 0.23.0 are affected; upgrading to 0.23.0 is recommended.

Executive priority

Treat this as a high-priority availability issue for externally reachable or business-critical Thrift services. Accelerate identification and upgrading where Go TFramedTransport is exposed to untrusted traffic. Lower the priority only after confirming the vulnerable version or transport is absent, unreachable, or replaced.

Technical view

CVE-2026-41602 is a CWE-190 integer overflow in Apache Thrift’s Go TFramedTransport implementation before 0.23.0. Its CVSS 3.1 score is 7.5: network-accessible, low complexity, no privileges or user interaction, with high availability impact and no stated confidentiality or integrity impact.

Likely exposure

Exposure is most likely where a Go application uses Apache Thrift before 0.23.0, specifically TFramedTransport, and accepts untrusted network traffic. The bundle does not establish whether every application importing Thrift reaches the vulnerable code. Confirm actual transport configuration and network reachability before treating a dependency match as exploitable.

Exploitation context

The supplied record does not identify active exploitation, and the CVE is not listed as KEV in the bundle. It also provides no evidence of a public exploit. Nevertheless, the network-accessible, unauthenticated, low-complexity rating means reachable affected services warrant prompt attention because successful exploitation could cause substantial service disruption.

Researcher notes

The source bundle identifies the overflow class and affected component but does not explain the precise failure mode, triggering input, or affected call paths. Avoid assuming code execution or data compromise: the supplied CVSS vector specifies availability impact only. Product-specific Red Hat applicability should be determined from its VEX and individual errata.

Mitigation direction

  • Upgrade Apache Thrift to version 0.23.0 or later.
  • Prioritize internet-facing or otherwise untrusted-network services using Go TFramedTransport.
  • Restrict untrusted network access to affected services until upgrading is complete.
  • Review relevant Red Hat advisories when Apache Thrift is supplied through Red Hat products.

Validation and detection

  • Inventory Go applications and transitive dependencies containing Apache Thrift versions below 0.23.0.
  • Confirm whether each identified application configures or invokes TFramedTransport.
  • Determine whether affected endpoints accept traffic from untrusted networks without authentication.
  • Verify deployed artifacts use Apache Thrift 0.23.0 or later after remediation.
  • Run availability-focused regression tests against the upgraded transport implementation.
Prepared
Confidence
high
Sources
5

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-190: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

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cve · low confidence lookup

CVE-2026-41602 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
High
CVSS
7.5 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

2CVSS vectors
5Timeline events
3ADP providers
15Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: yesTechnical Impact: partial

CVSS vector scores

2 official scores

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
7.5CVSS 3.1HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H3.93.6CISA-ADP
7.5CVSS 3.1HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H3.93.6redhat-SADP

Vulnerability scoring details

Base CVSS 3.1 score

7.5High
CVSS 3.1 vector shape for CVE-2026-41602Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. ADP timelineredhat-SADP

    Made public.

  3. CVE publishedCVE Program

    The CVE record was published.

  4. ADP timelineredhat-SADP

    Reported to Red Hat.

  5. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CVECVE Program Container
CISA-ADPCISA ADP Vulnrichment
cvssV3_1other:ssvc
redhat-SADPgithub.com/apache/thrift: Apache Thrift: Integer Overflow in TFramedTransport Go implementation
other:Red Hat severity ratingcvssV3_1
  • 2026-04-28T10:01:16.099Z: Reported to Red Hat.
  • 2026-04-28T09:19:06.646Z: Made public.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Apache Software FoundationApache Thrift0unaffected
Weakness

CWE details

CWE-190

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-190 · source CWE mapping

Integer Overflow or Wraparound

Integer Overflow or Wraparound represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

Open CWE intelligenceSame-CWE CVEs