Upstream information

CVE-2026-48102 at MITRE

Description

7-Zip is a file archiver with a high compression ratio. Versions 9.11 through 26.00 contain a heap out-of-bounds read of up to 3 bytes in the UDF disc image handler's File Identifier Descriptor parser. In CFileId::Parse (CPP/7zip/Archive/Udf/UdfIn.cpp), after validating size < 38 + idLen + impLen and advancing processed to 38 + impLen + idLen, the alignment-padding loop reads p[processed] while incrementing up to 3 times to reach a 4-byte boundary, and the processed <= size bounds check only runs after the loop. When (38 + impLen + idLen) % 4 != 0 and 38 + impLen + idLen == size, the loop reads 1 to 3 bytes past the end of the exact-size heap buffer allocated via buf.Alloc((size_t)item.Size). The UDF handler is registered for .iso and .udf files and auto-detected by signature, and the OOB read triggers during Open() when listing or extracting a crafted UDF image. Impact is limited to information disclosure (a 1-bit oracle per OOB byte via open/fail behavior) and denial of service (crash under hardened allocators); there is no write primitive. Version 26.01 fixes the issue.

SUSE information

Overall state of this security issue: Pending

This issue is currently rated as having low severity.

CVSS v3 Scores
CVSS detail CNA (GitHub) National Vulnerability Database SUSE
Base Score 3.1 4.3 2.5
Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
Attack Vector Network Network Local
Attack Complexity High Low High
Privileges Required None None None
User Interaction Required Required Required
Scope Unchanged Unchanged Unchanged
Confidentiality Impact Low Low Low
Integrity Impact None None None
Availability Impact None None None
CVSSv3 Version 3.1 3.1 3.1
CVSS v4 Scores
CVSS detail SUSE
Base Score 2.1
Vector CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Attack Vector Local
Attack Complexity High
Attack Requirements None
Privileges Required None
User Interaction None
Vulnerable System Confidentiality Impact Low
Vulnerable System Integrity Impact None
Vulnerable System Availability Impact None
Subsequent System Confidentiality Impact None
Subsequent System Integrity Impact None
Subsequent System Availability Impact None
CVSSv4 Version 4.0
SUSE Bugzilla entry: 1267860 [NEW]

No SUSE Security Announcements cross referenced.

List of packages in QA

Product(s) Package(s)
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS
  • 7zip >= 26.01-150400.9.6.1
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS
  • 7zip >= 26.01-150400.9.6.1
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS
  • 7zip >= 26.01-150400.9.6.1
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS
  • 7zip >= 26.01-150400.9.6.1
SUSE Linux Enterprise Module for Basesystem 15 SP7
  • 7zip >= 26.01-150400.9.6.1
SUSE Linux Enterprise Server 15 SP7
  • 7zip >= 26.01-150400.9.6.1
SUSE Linux Enterprise Desktop 15 SP7
  • 7zip >= 26.01-150400.9.6.1
SUSE Linux Enterprise Server for SAP Applications 15 SP7
  • 7zip >= 26.01-150400.9.6.1
SUSE Linux Enterprise High Performance Computing 15 SP7
  • 7zip >= 26.01-150400.9.6.1
SUSE Linux Enterprise Server 15 SP4-LTSS
  • 7zip >= 26.01-150400.9.6.1
SUSE Linux Enterprise Server 15 SP4-LTSS
  • 7zip >= 26.01-150400.9.6.1
SUSE Linux Enterprise Server 15 SP5-LTSS
  • 7zip >= 26.01-150400.9.6.1
SUSE Linux Enterprise Server 15 SP5-LTSS
  • 7zip >= 26.01-150400.9.6.1
SUSE Linux Enterprise Server 15 SP6-LTSS
  • 7zip >= 26.01-150400.9.6.1
SUSE Linux Enterprise Server 15 SP6-LTSS
  • 7zip >= 26.01-150400.9.6.1
SUSE Linux Enterprise Server for SAP Applications 15 SP4
  • 7zip >= 26.01-150400.9.6.1
SUSE Linux Enterprise Server for SAP Applications 15 SP5
  • 7zip >= 26.01-150400.9.6.1
SUSE Linux Enterprise Server for SAP Applications 15 SP6
  • 7zip >= 26.01-150400.9.6.1

Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.

Product(s) Source package State
Products under general support and receiving all security fixes.
SUSE Linux Enterprise Desktop 15 SP7 7zip In progress
SUSE Linux Enterprise High Performance Computing 15 SP7 7zip In progress
SUSE Linux Enterprise Module for Basesystem 15 SP7 7zip In progress
SUSE Linux Enterprise Server 15 SP7 7zip In progress
SUSE Linux Enterprise Server 16.0 7zip In progress
SUSE Linux Enterprise Server 16.1 7zip Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP7 7zip In progress
SUSE Linux Enterprise Server for SAP applications 16.0 7zip In progress
SUSE Linux Enterprise Server for SAP applications 16.1 7zip Affected
openSUSE Leap 16.0 7zip Affected
Products under Long Term Service Pack support and receiving important and critical security fixes.
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS 7zip In progress
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS 7zip In progress
SUSE Linux Enterprise Server 15 SP4-LTSS 7zip In progress
SUSE Linux Enterprise Server 15 SP5-LTSS 7zip In progress
SUSE Linux Enterprise Server 15 SP6-LTSS 7zip In progress
SUSE Linux Enterprise Server for SAP Applications 15 SP6 7zip In progress
Products past their end of life and not receiving proactive updates anymore.
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS 7zip In progress
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS 7zip In progress
SUSE Linux Enterprise Server for SAP Applications 15 SP4 7zip In progress
SUSE Linux Enterprise Server for SAP Applications 15 SP5 7zip In progress
openSUSE Leap 15.6 7zip Affected

SUSE Timeline for this CVE

CVE page created: Fri Jun 5 18:52:49 2026
CVE page last modified: Wed Jun 17 11:33:41 2026