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CVE Record

CVE-2025-32906: Libsoup: out of bounds reads in soup_headers_parse_request()

A flaw was found in libsoup, where the soup_headers_parse_request() function may be vulnerable to an out-of-bound read. This flaw allows a malicious user to use a specially crafted HTTP request to crash the HTTP server.

HighCVSS 7.5Not KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2025-32906 is a denial-of-service flaw in libsoup. A crafted HTTP request can cause an HTTP server using vulnerable libsoup request parsing to crash. The primary business impact is availability loss, not data theft or takeover, but internet-facing services depending on affected packages should be treated as urgent.

Executive priority

Treat as high priority for exposed services because unauthenticated network traffic can crash affected servers. This is mainly an availability risk, so patching should follow internet exposure and business criticality rather than emergency breach response.

Technical view

The issue is an out-of-bounds read in soup_headers_parse_request(), classified as CWE-125. CVSS 3.1 is 7.5 because exploitation is network-reachable, low complexity, unauthenticated, and can cause high availability impact. The supplied affected data names multiple Red Hat Enterprise Linux streams and libsoup package builds.

Likely exposure

Exposure is most likely where RHEL systems or downstream products use affected libsoup or libsoup3 packages in HTTP server-side parsing paths. Confirm package presence and whether the vulnerable library is reachable from network-facing services.

Exploitation context

The provided bundle says a specially crafted HTTP request can crash the HTTP server. It does not show KEV listing, confirmed active exploitation, public exploit details, or broader impact beyond denial of service.

Researcher notes

Available evidence supports a parser out-of-bounds read causing denial of service. The bundle includes affected Red Hat package builds and vendor advisories, but does not provide exploit code, active exploitation evidence, or complete non-Red Hat affected-version coverage.

Mitigation direction

  • Apply relevant Red Hat security updates for affected RHEL streams.
  • Check GNOME/libsoup and distribution vendor guidance for non-Red Hat systems.
  • Prioritize internet-facing services using libsoup request parsing.
  • Use service supervision and rate limiting as temporary availability controls.
  • Plan restarts or maintenance windows for patched packages where required.

Validation and detection

  • Inventory installed libsoup and libsoup3 package versions across Linux hosts.
  • Map affected packages to exposed services that process HTTP requests.
  • Check vendor advisory applicability for each OS release stream.
  • Confirm patched package versions after maintenance.
  • Review crash logs for unexplained HTTP parser failures.
Prepared
Confidence
high
Sources
9

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
cve · low confidence lookup

CVE-2025-32906 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
7.5 (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.

1CVSS vectors
5Timeline events
2ADP providers
18Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: partial

CVSS vector scores

1 official score

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:H3.93.6redhat

Vulnerability scoring details

Base CVSS 3.1 score

7.5High
CVSS 3.1 vector shape for CVE-2025-32906Attack 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. Source timelineredhat

    Made public.

  2. Source timelineredhat

    Reported to Red Hat.

  3. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  4. CVE publishedCVE Program

    The CVE record was published.

  5. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc
CVECVE Program Container

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Unknown vendorlibsouplibsoup, 0unaffected
Red HatRed Hat Enterprise Linux 10libsoup3, 0:3.6.5-3.el10_0affected
Red HatRed Hat Enterprise Linux 7 Extended Lifecycle Supportlibsoup, 0:2.62.2-9.el7_9affected
Red HatRed Hat Enterprise Linux 7 Extended Lifecycle Supportlibsoup, 0:2.62.2-6.el7_9affected
Red HatRed Hat Enterprise Linux 8libsoup, 0:2.62.3-8.el8_10affected
Red HatRed Hat Enterprise Linux 8mingw-freetype, 0:2.8-3.el8_10.1affected
Red HatRed Hat Enterprise Linux 8spice-client-win, 0:8.10-1affected
Red HatRed Hat Enterprise Linux 8libsoup, 0:2.62.3-8.el8_10affected
Red HatRed Hat Enterprise Linux 8.2 Advanced Update Supportlibsoup, 0:2.62.3-1.el8_2.4affected
Red HatRed Hat Enterprise Linux 8.4 Advanced Mission Critical Update Supportlibsoup, 0:2.62.3-2.el8_4.4affected
Red HatRed Hat Enterprise Linux 8.4 Telecommunications Update Servicelibsoup, 0:2.62.3-2.el8_4.4affected
Red HatRed Hat Enterprise Linux 8.4 Update Services for SAP Solutionslibsoup, 0:2.62.3-2.el8_4.4affected
Red HatRed Hat Enterprise Linux 8.6 Advanced Mission Critical Update Supportlibsoup, 0:2.62.3-2.el8_6.4affected
Red HatRed Hat Enterprise Linux 8.6 Telecommunications Update Servicelibsoup, 0:2.62.3-2.el8_6.4affected
Red HatRed Hat Enterprise Linux 8.6 Update Services for SAP Solutionslibsoup, 0:2.62.3-2.el8_6.4affected
Red HatRed Hat Enterprise Linux 8.8 Extended Update Supportlibsoup, 0:2.62.3-3.el8_8.4affected
Red HatRed Hat Enterprise Linux 9libsoup, 0:2.72.0-10.el9_6.1affected
Red HatRed Hat Enterprise Linux 9.0 Update Services for SAP Solutionslibsoup, 0:2.72.0-8.el9_0.4affected
Red HatRed Hat Enterprise Linux 9.2 Extended Update Supportlibsoup, 0:2.72.0-8.el9_2.4affected
Red HatRed Hat Enterprise Linux 9.4 Extended Update Supportlibsoup, 0:2.72.0-8.el9_4.4affected
Red HatRed Hat Enterprise Linux 6libsoupunknown
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