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CVE-2026-3632

A flaw was found in libsoup, a library used by applications to send network requests. This vulnerability occurs because libsoup does not properly validate hostnames, allowing special characters to be injected into HTTP headers. A remote attacker could exploit this to perform HTTP smuggling, where they can send hidden, malicious requests alongside legitimate ones. In certain situations, this could lead to Server-Side Request Forgery (SSRF), enabling an attacker to force the server to make unautho
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:0ff4d2e56e8d44bb7faa578c27dccbe6f25e5efcc06c44b4725efe9c02ae9219
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 5 assertions

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:8"],"defaultStatus":"affected","packageName":"libsoup","product":"Red Hat Enterprise Linux 8","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2143c0229fd92c6fc0364046fd0b4f4d893c31b533ac03d2e3aa067a4113d3d5 · sha256:68d50ddf110af74c… · /containers/cna/affected/3

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:7"],"defaultStatus":"affected","packageName":"libsoup","product":"Red Hat Enterprise Linux 7","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2143c0229fd92c6fc0364046fd0b4f4d893c31b533ac03d2e3aa067a4113d3d5 · sha256:68d50ddf110af74c… · /containers/cna/affected/2

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:9"],"defaultStatus":"affected","packageName":"libsoup","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2143c0229fd92c6fc0364046fd0b4f4d893c31b533ac03d2e3aa067a4113d3d5 · sha256:68d50ddf110af74c… · /containers/cna/affected/4

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:6"],"defaultStatus":"unknown","packageName":"libsoup","product":"Red Hat Enterprise Linux 6","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2143c0229fd92c6fc0364046fd0b4f4d893c31b533ac03d2e3aa067a4113d3d5 · sha256:68d50ddf110af74c… · /containers/cna/affected/1

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:10"],"defaultStatus":"affected","packageName":"libsoup3","product":"Red Hat Enterprise Linux 10","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2143c0229fd92c6fc0364046fd0b4f4d893c31b533ac03d2e3aa067a4113d3d5 · sha256:68d50ddf110af74c… · /containers/cna/affected/0

Affected products and versions

5 source assertions
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:8"],"defaultStatus":"affected","packageName":"libsoup","product":"Red Hat Enterprise Linux 8","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2143c0229fd92c6fc0364046fd0b4f4d893c31b533ac03d2e3aa067a4113d3d5 · sha256:68d50ddf110af74c… · /containers/cna/affected/3
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:7"],"defaultStatus":"affected","packageName":"libsoup","product":"Red Hat Enterprise Linux 7","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2143c0229fd92c6fc0364046fd0b4f4d893c31b533ac03d2e3aa067a4113d3d5 · sha256:68d50ddf110af74c… · /containers/cna/affected/2
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:9"],"defaultStatus":"affected","packageName":"libsoup","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2143c0229fd92c6fc0364046fd0b4f4d893c31b533ac03d2e3aa067a4113d3d5 · sha256:68d50ddf110af74c… · /containers/cna/affected/4
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:6"],"defaultStatus":"unknown","packageName":"libsoup","product":"Red Hat Enterprise Linux 6","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2143c0229fd92c6fc0364046fd0b4f4d893c31b533ac03d2e3aa067a4113d3d5 · sha256:68d50ddf110af74c… · /containers/cna/affected/1
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:10"],"defaultStatus":"affected","packageName":"libsoup3","product":"Red Hat Enterprise Linux 10","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2143c0229fd92c6fc0364046fd0b4f4d893c31b533ac03d2e3aa067a4113d3d5 · sha256:68d50ddf110af74c… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":3.9,"baseSeverity":"LOW","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"HIGH","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:L","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:2143c0229fd92c6fc0364046fd0b4f4d893c31b533ac03d2e3aa067a4113d3d5 · sha256:68d50ddf110af74c… · /containers/cna/metrics/1/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-1286","description":"Improper Validation of Syntactic Correctness of Input","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:2143c0229fd92c6fc0364046fd0b4f4d893c31b533ac03d2e3aa067a4113d3d5 · sha256:68d50ddf110af74c… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-3632"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2143c0229fd92c6fc0364046fd0b4f4d893c31b533ac03d2e3aa067a4113d3d5 · sha256:68d50ddf110af74c… · /containers/cna/references/0
{"name":"RHBZ#2445127","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2445127"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2143c0229fd92c6fc0364046fd0b4f4d893c31b533ac03d2e3aa067a4113d3d5 · sha256:68d50ddf110af74c… · /containers/cna/references/1
{"url":"https://gitlab.gnome.org/GNOME/libsoup/-/issues/483"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2143c0229fd92c6fc0364046fd0b4f4d893c31b533ac03d2e3aa067a4113d3d5 · sha256:68d50ddf110af74c… · /containers/cna/references/2

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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