LiveActive security incident?Get immediate response
CVE Record

CVE-2026-32285: Denial of service in github.com/buger/jsonparser

The Delete function fails to properly validate offsets when processing malformed JSON input. This can lead to a negative slice index and a runtime panic, allowing a denial of service attack.

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

Security readout for executives and security teams

Plain-English summary

This flaw can let malformed JSON crash software that uses buger/jsonparser's Delete function. The business impact is availability: exposed services may stop handling requests if attacker-controlled JSON reaches the vulnerable path. The bundle does not show confirmed in-the-wild exploitation.

Executive priority

Prioritize remediation for internet-facing or high-availability services that process user-supplied JSON. The issue is not shown as actively exploited, but the unauthenticated network DoS profile warrants timely patch validation.

Technical view

The Delete function in github.com/buger/jsonparser fails to validate offsets for malformed JSON, leading to a negative slice index and Go runtime panic. CVSS 3.1 is 7.5, network-reachable, low complexity, unauthenticated, with high availability impact only.

Likely exposure

Exposure is most likely in Go services importing github.com/buger/jsonparser and calling Delete on JSON influenced by external users, APIs, queues, or files. The affected version data in the bundle is limited and should be verified against GO-2026-4514 and vendor advisories.

Exploitation context

The bundle includes a public research reference tagged exploit, but KEV is false and no cited source here confirms active exploitation. Treat this as a practical denial-of-service risk where malformed JSON can reach vulnerable parsing paths.

Researcher notes

Focus triage on reachability, not just dependency presence. The vulnerable condition is tied to Delete processing malformed JSON and producing a negative slice panic. Source evidence does not provide complete affected version or fixed-version details in the supplied bundle.

Mitigation direction

  • Inventory Go services using github.com/buger/jsonparser.
  • Identify code paths calling Delete on untrusted JSON.
  • Check GO-2026-4514 and upstream guidance for fixed versions.
  • Apply relevant vendor updates, including Red Hat errata where applicable.
  • Reject malformed JSON before affected Delete paths.
  • Use panic recovery to contain service impact.

Validation and detection

  • Search dependency manifests for github.com/buger/jsonparser.
  • Confirm whether Delete is reachable from external inputs.
  • Compare installed versions with GO-2026-4514 guidance.
  • Review Red Hat advisories for affected packaged components.
  • Test malformed JSON handling in a safe staging environment.
  • Verify crashes are contained and logged.
Prepared
Confidence
medium
Sources
12

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-125: 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-1285: 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-2026-32285 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
2ADP providers
21Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: pocAutomatable: 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-2026-32285Attack 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

CISA-ADPCISA ADP Vulnrichment
cvssV3_1other:ssvc
redhat-SADPgithub.com/buger/jsonparser: github.com/buger/jsonparser: Denial of Service via malformed JSON input
other:Red Hat severity ratingcvssV3_1
  • 2026-03-26T20:01:54.925Z: Reported to Red Hat.
  • 2026-03-26T19:40:51.837Z: Made public.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
github.com/buger/jsonparsergithub.com/buger/jsonparsergithub.com/buger/jsonparser, 0unaffected
Weakness

CWE details

CWE-125CWE-1285

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