LiveActive security incident?Get immediate response
CVE Record

CVE-2026-41606: Apache Thrift: c_glib dispatch stack overflow

Uncontrolled Recursion 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.

HighCVSS 7.5Not KEV-listedUpdated
Discuss exposureBack to CVEs
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

A remote, unauthenticated attacker may be able to make a vulnerable Apache Thrift c_glib service recurse until its stack is exhausted, causing a crash or service outage. The supplied CVSS score is 7.5 because availability is at risk, while confidentiality and integrity impacts are not identified.

Executive priority

Treat internet-facing or otherwise untrusted-client-accessible c_glib services as a high-priority availability risk. Patch promptly after identifying affected deployments. Less-exposed systems should follow normal expedited remediation, since the supplied evidence establishes denial-of-service potential but not data theft, modification, or active exploitation.

Technical view

CVE-2026-41606 is an uncontrolled-recursion issue, classified as CWE-606 and CWE-674, in Apache Thrift's c_glib dispatch functionality before version 0.23.0. The supplied vector indicates network reachability, low attack complexity, no required privileges, and no user interaction. Successful triggering can exhaust the call stack and deny service.

Likely exposure

Prioritize systems using Apache Thrift versions earlier than 0.23.0, particularly network-accessible services using the c_glib implementation. A Thrift dependency alone does not establish exploitability; confirm the deployed version, language binding, affected dispatch path, and whether untrusted clients can reach it.

Exploitation context

The supplied record is not listed in KEV and provides no evidence of active exploitation. Its CVSS vector nevertheless describes remotely reachable, unauthenticated exploitation with low complexity. The bundle does not document exact triggering conditions, public proof-of-concept availability, or observed attacks, so exploitation prevalence remains unknown.

Researcher notes

The record identifies uncontrolled recursion and stack overflow in c_glib dispatch, but does not provide root-cause detail or precise reachability prerequisites. Validate component usage before assigning exposure. Version 0.23.0 is the named upstream fix; distribution packages may use backports, so compare vendor advisory status rather than upstream version strings alone.

Mitigation direction

  • Upgrade Apache Thrift to version 0.23.0 or later.
  • Apply applicable downstream vendor updates, including relevant Red Hat errata.
  • Restrict untrusted network access to vulnerable Thrift services until remediation is complete.
  • Review Apache and distribution guidance for any deployment-specific precautions.

Validation and detection

  • Inventory Apache Thrift versions and identify deployments earlier than 0.23.0.
  • Confirm whether each deployment uses the c_glib implementation and affected dispatch functionality.
  • Map network paths to determine whether untrusted clients can reach exposed Thrift services.
  • Verify upgraded systems report version 0.23.0 or a vendor-confirmed backport.
  • Review service crashes and stack-exhaustion events for suspicious recurrence patterns.
Prepared
Confidence
medium
Sources
6

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-606: 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.

Open ATT&CK lookup
cwe · low confidence lookup

CWE-674: 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.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2026-41606 mapping review

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

Open ATT&CK lookup
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
12Source 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:H3.93.6redhat-SADP
5.3CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L3.91.4CISA-ADP

Vulnerability scoring details

Base CVSS 3.1 score

7.5High
CVSS 3.1 vector shape for CVE-2026-41606Attack 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-SADPApache Thrift: Apache Thrift: Denial of Service via uncontrolled recursion
other:Red Hat severity ratingcvssV3_1
  • 2026-04-28T10:01:19.136Z: Reported to Red Hat.
  • 2026-04-28T09:21:12.815Z: Made public.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Apache Software FoundationApache Thrift0unaffected
Weakness

CWE details

CWE-606CWE-674

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

CWE-606 · source CWE mapping

Unchecked Input for Loop Condition

Unchecked Input for Loop Condition represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

Open CWE intelligenceSame-CWE CVEs
CWE-674 · source CWE mapping

Uncontrolled Recursion

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

Open CWE intelligenceSame-CWE CVEs