Upstream information
Description
An algorithmic complexity flaw exists in libsoup's HTTP Range header processing that persists after the CVE-2025-32907 fix.CVE-2025-32907 addressed memory amplification when a client repeated the same range many times in a single Range header. Commit 9bb92f7a corrected merge correctness in soup_message_headers_get_ranges_internal() in libsoup/soup-message-headers.c, but the coalescing loop still removes merged ranges using g_array_remove_index() for each coalesced element. Because GArray is contiguous, each mid-array removal performs an O(N) memmove. When many identical satisfiable ranges are supplied (for example bytes=0-0 repeated thousands of times), the loop performs O(N²) work coalescing them into a single range.
The vulnerable path is reachable server-side from handle_partial_get() in libsoup/server/http1/soup-server-message-io-http1.c when a SoupServer handler returns HTTP 200 with a non-empty body. No authentication is required. The number of ranges is bounded only by the maximum request header size (~100 KiB), allowing roughly 25,000 ranges per request. Reporter measurements on libsoup HEAD containing the CVE-2025-32907 fix show ~90 ms single-core CPU per such request at the wire maximum, blocking the server's event loop for that duration.
This is a CPU exhaustion / availability issue only. No memory corruption or information disclosure occurs.
Affected: libsoup versions containing the CVE-2025-32907 fix but not merge request !550.
Fixed upstream: MR !550 merged 2026-08-20, replacing per-element removal with O(N) in-place compaction and rejecting Range headers requesting more than 200 ranges.
Upstream report: https://gitlab.gnome.org/GNOME/libsoup/-/issues/538
Related: CVE-2025-32907
SUSE information
Overall state of this security issue: Pending
This issue is currently rated as having moderate severity.
| CVSS detail | CNA (Red Hat) | SUSE |
|---|---|---|
| Base Score | 5.3 | 5.3 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
| Attack Vector | Network | Network |
| Attack Complexity | Low | Low |
| Privileges Required | None | None |
| User Interaction | None | None |
| Scope | Unchanged | Unchanged |
| Confidentiality Impact | None | None |
| Integrity Impact | None | None |
| Availability Impact | Low | Low |
| CVSSv3 Version | 3.1 | 3.1 |
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 | libsoup | Affected |
| SUSE Linux Enterprise Desktop 15 SP7 | libsoup2 | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP7 | libsoup | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP7 | libsoup2 | Affected |
| SUSE Linux Enterprise Micro 5.3 | libsoup2 | Affected |
| SUSE Linux Enterprise Micro 5.4 | libsoup2 | Affected |
| SUSE Linux Enterprise Micro 5.5 | libsoup2 | Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP7 | libsoup | Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP7 | libsoup2 | Affected |
| SUSE Linux Enterprise Server 15 SP7 | libsoup | Affected |
| SUSE Linux Enterprise Server 15 SP7 | libsoup2 | Affected |
| SUSE Linux Enterprise Server 16.0 | libsoup | Affected |
| SUSE Linux Enterprise Server 16.1 | libsoup | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | libsoup | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | libsoup2 | Affected |
| SUSE Linux Enterprise Server for SAP applications 16.0 | libsoup | Affected |
| SUSE Linux Enterprise Server for SAP applications 16.1 | libsoup | Affected |
| SUSE Linux Micro 6.0 | libsoup | Affected |
| SUSE Linux Micro 6.1 | libsoup | Affected |
| SUSE Linux Micro 6.2 | libsoup | Affected |
| openSUSE Leap 16.0 | libsoup | Affected |
| Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
| SUSE Linux Enterprise High Performance Computing 12 SP5 | libsoup | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | libsoup | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | libsoup2 | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5 | libsoup | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5 | libsoup2 | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | libsoup | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | libsoup2 | Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP4 | libsoup | Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP4 | libsoup2 | Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP5 | libsoup | Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP5 | libsoup2 | Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP6 | libsoup | Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP6 | libsoup2 | Affected |
| SUSE Linux Enterprise Server 12 SP5 | libsoup | Affected |
| SUSE Linux Enterprise Server 12 SP5-LTSS | libsoup | Affected |
| SUSE Linux Enterprise Server 12 SP5-LTSS Extended Security | libsoup | Affected |
| SUSE Linux Enterprise Server 15 SP4 | libsoup | Affected |
| SUSE Linux Enterprise Server 15 SP4 | libsoup2 | Affected |
| SUSE Linux Enterprise Server 15 SP4-LTSS | libsoup | Affected |
| SUSE Linux Enterprise Server 15 SP4-LTSS | libsoup2 | Affected |
| SUSE Linux Enterprise Server 15 SP5 | libsoup | Affected |
| SUSE Linux Enterprise Server 15 SP5 | libsoup2 | Affected |
| SUSE Linux Enterprise Server 15 SP5-LTSS | libsoup | Affected |
| SUSE Linux Enterprise Server 15 SP5-LTSS | libsoup2 | Affected |
| SUSE Linux Enterprise Server 15 SP6 | libsoup | Affected |
| SUSE Linux Enterprise Server 15 SP6 | libsoup2 | Affected |
| SUSE Linux Enterprise Server 15 SP6-LTSS | libsoup | Affected |
| SUSE Linux Enterprise Server 15 SP6-LTSS | libsoup2 | Affected |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | libsoup | Affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP5 | libsoup | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | libsoup | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | libsoup2 | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | libsoup | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | libsoup2 | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | libsoup | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | libsoup2 | Affected |
| SUSE Manager Proxy 4.3 | libsoup | Affected |
| SUSE Manager Proxy 4.3 | libsoup2 | Affected |
| SUSE Manager Proxy LTS 4.3 | libsoup | Affected |
| SUSE Manager Proxy LTS 4.3 | libsoup2 | Affected |
| SUSE Manager Retail Branch Server 4.3 | libsoup | Affected |
| SUSE Manager Retail Branch Server 4.3 | libsoup2 | Affected |
| SUSE Manager Retail Branch Server LTS 4.3 | libsoup | Affected |
| SUSE Manager Retail Branch Server LTS 4.3 | libsoup2 | Affected |
| SUSE Manager Server 4.3 | libsoup | Affected |
| SUSE Manager Server 4.3 | libsoup2 | Affected |
| SUSE Manager Server LTS 4.3 | libsoup | Affected |
| SUSE Manager Server LTS 4.3 | libsoup2 | Affected |
| Products past their end of life and not receiving proactive updates anymore. | ||
| HPE Helion OpenStack 8 | libsoup | Affected |
| SUSE CaaS Platform 4.0 | libsoup | Affected |
| SUSE Enterprise Storage 6 | libsoup | Affected |
| SUSE Enterprise Storage 7 | libsoup | Affected |
| SUSE Enterprise Storage 7.1 | libsoup | Affected |
| SUSE Linux Enterprise Desktop 12 SP2 | libsoup | Affected |
| SUSE Linux Enterprise Desktop 12 SP3 | libsoup | Affected |
| SUSE Linux Enterprise Desktop 12 SP4 | libsoup | Affected |
| SUSE Linux Enterprise Desktop 15 | libsoup | Affected |
| SUSE Linux Enterprise Desktop 15 SP1 | libsoup | Affected |
| SUSE Linux Enterprise Desktop 15 SP2 | libsoup | Affected |
| SUSE Linux Enterprise Desktop 15 SP3 | libsoup | Affected |
| SUSE Linux Enterprise Desktop 15 SP4 | libsoup | Affected |
| SUSE Linux Enterprise Desktop 15 SP4 | libsoup2 | Affected |
| SUSE Linux Enterprise Desktop 15 SP5 | libsoup | Affected |
| SUSE Linux Enterprise Desktop 15 SP5 | libsoup2 | Affected |
| SUSE Linux Enterprise Desktop 15 SP6 | libsoup | Affected |
| SUSE Linux Enterprise Desktop 15 SP6 | libsoup2 | Affected |
| SUSE Linux Enterprise High Performance Computing 12 SP2 | libsoup | Affected |
| SUSE Linux Enterprise High Performance Computing 12 SP3 | libsoup | Affected |
| SUSE Linux Enterprise High Performance Computing 12 SP4 | libsoup | Affected |
| SUSE Linux Enterprise High Performance Computing 15 | libsoup | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1 | libsoup | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS | libsoup | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS | libsoup | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2 | libsoup | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS | libsoup | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | libsoup | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3 | libsoup | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS | libsoup | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS | libsoup | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4 | libsoup | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4 | libsoup2 | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | libsoup | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | libsoup2 | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | libsoup | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | libsoup2 | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP6 | libsoup | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP6 | libsoup2 | Affected |
| SUSE Linux Enterprise High Performance Computing 15-ESPOS | libsoup | Affected |
| SUSE Linux Enterprise High Performance Computing 15-LTSS | libsoup | Affected |
| SUSE Linux Enterprise Micro 5.2 | libsoup | Affected |
| SUSE Linux Enterprise Module for Basesystem 15 | libsoup | Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP1 | libsoup | Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP2 | libsoup | Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP3 | libsoup | Affected |
| SUSE Linux Enterprise Module for Desktop Applications 15 | libsoup | Affected |
| SUSE Linux Enterprise Module for Desktop Applications 15 SP1 | libsoup | Affected |
| SUSE Linux Enterprise Module for Desktop Applications 15 SP2 | libsoup | Affected |
| SUSE Linux Enterprise Point of Sale 12 SP2-CLIENT | libsoup | Affected |
| SUSE Linux Enterprise Real Time 15 SP2 | libsoup | Affected |
| SUSE Linux Enterprise Real Time 15 SP3 | libsoup | Affected |
| SUSE Linux Enterprise Real Time 15 SP4 | libsoup | Affected |
| SUSE Linux Enterprise Real Time 15 SP4 | libsoup2 | Affected |
| SUSE Linux Enterprise Server 12 SP2 | libsoup | Affected |
| SUSE Linux Enterprise Server 12 SP2-BCL | libsoup | Affected |
| SUSE Linux Enterprise Server 12 SP2-ESPOS | libsoup | Affected |
| SUSE Linux Enterprise Server 12 SP2-LTSS | libsoup | Affected |
| SUSE Linux Enterprise Server 12 SP3 | libsoup | Affected |
| SUSE Linux Enterprise Server 12 SP3-BCL | libsoup | Affected |
| SUSE Linux Enterprise Server 12 SP3-ESPOS | libsoup | Affected |
| SUSE Linux Enterprise Server 12 SP3-LTSS | libsoup | Affected |
| SUSE Linux Enterprise Server 12 SP4 | libsoup | Affected |
| SUSE Linux Enterprise Server 12 SP4-ESPOS | libsoup | Affected |
| SUSE Linux Enterprise Server 12 SP4-LTSS | libsoup | Affected |
| SUSE Linux Enterprise Server 15 | libsoup | Affected |
| SUSE Linux Enterprise Server 15 SP1 | libsoup | Affected |
| SUSE Linux Enterprise Server 15 SP1-BCL | libsoup | Affected |
| SUSE Linux Enterprise Server 15 SP1-LTSS | libsoup | Affected |
| SUSE Linux Enterprise Server 15 SP2 | libsoup | Affected |
| SUSE Linux Enterprise Server 15 SP2-BCL | libsoup | Affected |
| SUSE Linux Enterprise Server 15 SP2-LTSS | libsoup | Affected |
| SUSE Linux Enterprise Server 15 SP3 | libsoup | Affected |
| SUSE Linux Enterprise Server 15 SP3-BCL | libsoup | Affected |
| SUSE Linux Enterprise Server 15 SP3-LTSS | libsoup | Affected |
| SUSE Linux Enterprise Server 15-LTSS | libsoup | Affected |
| SUSE Linux Enterprise Server for Raspberry Pi 12 SP2 | libsoup | Affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP2 | libsoup | Affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP3 | libsoup | Affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP4 | libsoup | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 | libsoup | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP1 | libsoup | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP2 | libsoup | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP3 | libsoup | Affected |
| SUSE Linux Enterprise Software Development Kit 12 SP2 | libsoup | Affected |
| SUSE Linux Enterprise Software Development Kit 12 SP3 | libsoup | Affected |
| SUSE Linux Enterprise Software Development Kit 12 SP4 | libsoup | Affected |
| SUSE Linux Enterprise Software Development Kit 12 SP5 | libsoup | Affected |
| SUSE Manager Proxy 4.0 | libsoup | Affected |
| SUSE Manager Proxy 4.1 | libsoup | Affected |
| SUSE Manager Proxy 4.2 | libsoup | Affected |
| SUSE Manager Retail Branch Server 4.0 | libsoup | Affected |
| SUSE Manager Retail Branch Server 4.1 | libsoup | Affected |
| SUSE Manager Retail Branch Server 4.2 | libsoup | Affected |
| SUSE Manager Server 4.0 | libsoup | Affected |
| SUSE Manager Server 4.1 | libsoup | Affected |
| SUSE Manager Server 4.2 | libsoup | Affected |
| SUSE OpenStack Cloud 7 | libsoup | Affected |
| SUSE OpenStack Cloud 8 | libsoup | Affected |
| SUSE OpenStack Cloud 9 | libsoup | Affected |
| SUSE OpenStack Cloud Crowbar 8 | libsoup | Affected |
| SUSE OpenStack Cloud Crowbar 9 | libsoup | Affected |
| openSUSE Leap 15.3 | libsoup | Affected |
| openSUSE Leap 15.4 | libsoup | Affected |
| openSUSE Leap 15.4 | libsoup2 | Affected |
| openSUSE Leap 15.5 | libsoup | Affected |
| openSUSE Leap 15.5 | libsoup2 | Affected |
| openSUSE Leap 15.6 | libsoup | Affected |
| openSUSE Leap 15.6 | libsoup2 | Affected |
| openSUSE Leap Micro 5.2 | libsoup | Affected |
| openSUSE Leap Micro 5.3 | libsoup2 | Affected |
| openSUSE Leap Micro 5.4 | libsoup2 | Affected |
| openSUSE Leap Micro 5.5 | libsoup2 | Affected |
SUSE Timeline for this CVE
CVE page created: Wed Aug 26 11:48:15 2026CVE page last modified: Wed Aug 26 11:48:15 2026