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CVE Record

CVE-2026-41607: Apache Thrift: C++ JSON OOB read

Out-of-bounds Read 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.

CriticalCVSS 9.1Not KEV-listedUpdated
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Glexia's TakeAutomated analysiscritical

Security readout for executives and security teams

Plain-English summary

Apache Thrift versions before 0.23.0 contain a C++ JSON-processing flaw that may expose sensitive memory or crash an affected service. The 9.1 CVSS rating reflects potentially severe confidentiality and availability consequences without authentication or user interaction. Actual organizational risk depends on whether vulnerable C++ components process attacker-controlled JSON over a network.

Executive priority

Treat confirmed, network-reachable deployments as an urgent remediation priority because unauthenticated attacks may disclose memory or disrupt services. First establish whether Thrift C++ JSON processing is present and externally reachable, then upgrade promptly. Systems without the affected library or reachable processing path are not demonstrated as exposed by this bundle.

Technical view

CVE-2026-41607 is a CWE-125 out-of-bounds read in Apache Thrift's C++ JSON handling before version 0.23.0. Its CVSS 3.1 vector indicates network reachability, low attack complexity, no required privileges or interaction, high confidentiality impact, no integrity impact, and high availability impact. The supplied sources do not describe the exact parser path or triggering conditions.

Likely exposure

Prioritize services, appliances, and embedded applications containing Apache Thrift C++ versions earlier than 0.23.0, especially where they accept untrusted JSON through network-accessible interfaces. The bundle does not identify particular downstream products or configurations, so exposure requires dependency and runtime-path verification rather than product-name assumptions.

Exploitation context

The source bundle does not provide evidence of active exploitation, and the CVE is not marked as present in KEV. The CVSS vector nevertheless describes unauthenticated network exploitation with low complexity. No public proof-of-concept status or observed attack details are established by the supplied material.

Researcher notes

The public description establishes an out-of-bounds read and the fixed release, but omits root-cause detail, affected symbols, prerequisite parser settings, and demonstrated outcomes. High confidentiality and availability impacts come from the CVSS assessment; they should not be interpreted as confirmed exploitation. Downstream Red Hat applicability should be determined from the cited CVE, VEX, and relevant errata.

Mitigation direction

  • Upgrade Apache Thrift to version 0.23.0 or later.
  • Apply relevant supported-distribution advisories where Apache Thrift is supplied as a package.
  • Restrict untrusted network access to affected Thrift services until remediation is complete.
  • Review vendor guidance for embedded or indirectly bundled Thrift components.

Validation and detection

  • Inventory direct and transitive Apache Thrift dependencies, including statically linked C++ binaries.
  • Confirm deployed runtime versions are 0.23.0 or later.
  • Identify services that process externally supplied JSON through Apache Thrift C++ code.
  • Verify package or product remediation against the applicable vendor advisory.
  • Retest service stability and expected JSON handling after upgrading.
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

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cwe · low confidence lookup

CWE-125: Exact CWE lookup

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cve · low confidence lookup

CVE-2026-41607 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
Critical
CVSS
9.1 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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
9.1CVSS 3.1CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H3.95.2redhat-SADP
6.5CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L3.92.5CISA-ADP

Vulnerability scoring details

Base CVSS 3.1 score

9.1Critical
CVSS 3.1 vector shape for CVE-2026-41607Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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.com/apache/thrift: Apache Thrift: Out-of-bounds Read vulnerability
other:Red Hat severity ratingcvssV3_1
  • 2026-04-28T10:01:33.022Z: Reported to Red Hat.
  • 2026-04-28T09:21:48.502Z: Made public.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Apache Software FoundationApache Thrift0unaffected
Weakness

CWE details

CWE-125

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

CWE-125 · source CWE mapping

Out-of-bounds Read

Out-of-bounds Read represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

Open CWE intelligenceSame-CWE CVEs