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CVE Record

CVE-2026-3082: GStreamer JPEG Parser Heap-based Buffer Overflow Remote Code Execution Vulnerability

GStreamer JPEG Parser Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation. The specific flaw exists within the processing of Huffman tables. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-28840.

HighCVSS 7.8Not KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2026-3082 is a high-severity flaw in GStreamer's JPEG parsing. A crafted JPEG processed by an affected application could let an attacker run code inside that application's process. User or application interaction with the library is required, so business risk depends on where GStreamer handles untrusted images or media.

Executive priority

Treat this as a high-priority patching item for endpoints and services that process untrusted media. It is not currently identified as actively exploited in the supplied sources, but the potential impact is code execution with full confidentiality, integrity, and availability impact.

Technical view

The flaw is a heap-based buffer overflow in JPEG Huffman table processing. The parser copies user-supplied data into a fixed-length heap buffer without adequate length validation. ZDI reports remote code execution is possible in the current process. The supplied CVSS vector is 7.8: local attack vector, low complexity, no privileges, user interaction required.

Likely exposure

Exposure is most likely where Linux desktops, media services, file previewers, upload processors, or applications use GStreamer to parse JPEG or media content from untrusted sources. The source bundle does not provide a complete affected version range beyond the listed GStreamer commit identifier and vendor references.

Exploitation context

The bundle does not show CISA KEV listing or other evidence of active exploitation. Exploitation requires a target application to process malicious content through the vulnerable GStreamer JPEG parser. Attack delivery may vary by implementation, such as opening, previewing, transcoding, or otherwise ingesting attacker-controlled media.

Researcher notes

Focus validation on the JPEG parser Huffman table handling and downstream packaging status. The source bundle identifies ZDI-CAN-28840 and a GStreamer commit, but does not include full affected release ranges, exploit maturity, or detailed Red Hat product applicability in the supplied text.

Mitigation direction

  • Apply GStreamer updates from the relevant OS or vendor advisory.
  • For Red Hat systems, review the listed RHSA advisories for applicable packages.
  • Prioritize systems that process externally supplied images or media.
  • Limit automatic parsing of untrusted media until patched where practical.
  • Run media processing with least privilege and sandboxing where supported.
  • Monitor vendor guidance for exact affected versions and fixed builds.

Validation and detection

  • Inventory systems and applications that include or link GStreamer.
  • Identify workflows that parse JPEG or media from untrusted users.
  • Check installed package versions against vendor advisories.
  • Confirm applicable GStreamer fixes or downstream patches are installed.
  • Verify Red Hat systems against relevant RHSA status.
  • Review crash telemetry for media parsing faults after exposure events.
Prepared
Confidence
medium
Sources
10

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-120: 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-122: 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
description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2026-3082 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
7.8 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/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: noneAutomatable: noTechnical Impact: total

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
7.8CVSS 3.0HighCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H1.85.9zdi
7.8CVSS 3.1HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H1.85.9redhat-SADP

Vulnerability scoring details

Base CVSS 3.1 score

7.8High
CVSS 3.1 vector shape for CVE-2026-3082Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/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
other:ssvc
redhat-SADPgstreamer-plugins-bad: GStreamer: Remote Code Execution via heap-based buffer overflow in JPEG parser
other:Red Hat severity ratingcvssV3_1
  • 2026-03-13T21:01:52.652Z: Reported to Red Hat.
  • 2026-03-13T20:39:33.772Z: Made public.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
GStreamerGStreamer1c6e163aa33962f5ee4a87d29319ccdd5cb67612unknown
Weakness

CWE details

CWE-120CWE-122

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