Vulnerability-Lookup

OPENSUSE-SU-2026:11866-1

Vulnerability from csaf_opensuse - Published: 2026-09-23 00:00 - Updated: 2026-09-24 10:29

Summary

python313-soupsieve-2.9.2-1.1 on GA media

Severity

Moderate

Notes

Title of the patch: python313-soupsieve-2.9.2-1.1 on GA media

Description of the patch: These are all security issues fixed in the python313-soupsieve-2.9.2-1.1 package on the GA media of openSUSE Tumbleweed.

Patchnames: openSUSE-Tumbleweed-2026-11866

CVE-2026-85999

5.3 (Medium)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Affected products

Recommended 8 products

Product	Version	Remediation
Unresolved product id: openSUSE Tumbleweed:python313-soupsieve-0:2.9.2-1.1.aarch64	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python313-soupsieve-0:2.9.2-1.1.ppc64le	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python313-soupsieve-0:2.9.2-1.1.s390x	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python313-soupsieve-0:2.9.2-1.1.x86_64	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python314-soupsieve-0:2.9.2-1.1.aarch64	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python314-soupsieve-0:2.9.2-1.1.ppc64le	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python314-soupsieve-0:2.9.2-1.1.s390x	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python314-soupsieve-0:2.9.2-1.1.x86_64	—	Vendor Fix

Threats

Impact moderate

CVE-2026-86000

5.3 (Medium)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Affected products

Recommended 8 products, the same list as for CVE-2026-85999

Threats

Impact moderate

References

8 references

URL	Category
https://www.suse.com/support/security/rating/	external
https://ftp.suse.com/pub/projects/security/csaf/o…	self
https://www.suse.com/security/cve/CVE-2026-85999/	self
https://www.suse.com/security/cve/CVE-2026-86000/	self
https://www.suse.com/security/cve/CVE-2026-85999	external
https://bugzilla.suse.com/1281119	external
https://www.suse.com/security/cve/CVE-2026-86000	external
https://bugzilla.suse.com/1281120	external

JSON

To clipboard

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          "text": "Soup Sieve is a CSS selector library designed to be used with Beautiful Soup 4. Prior to 2.9, the selector parser in src/soupsieve/css_parser.py defines IDENTIFIER with adjacent quantified groups over overlapping character classes, and VALUE embeds IDENTIFIER for attribute selectors. When an attacker-controlled selector contains a long identifier or unquoted attribute-value run followed by input that makes the overall match fail, the regular expression engine explores quadratically many splits between the overlapping groups. User-controlled selectors can reach this path through soupsieve.compile(), soupsieve.select(), or BeautifulSoup.select(), while applications using only hard-coded selectors are unaffected. The resulting CPU consumption can hold the Python GIL, exhaust application workers, and stall a service; successful plain identifier matches are linear, and the issue does not cause memory corruption or code execution. The issue is fixed in version 2.9.",
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          },
          "products": [
            "openSUSE Tumbleweed:python313-soupsieve-0:2.9.2-1.1.aarch64",
            "openSUSE Tumbleweed:python313-soupsieve-0:2.9.2-1.1.ppc64le",
            "openSUSE Tumbleweed:python313-soupsieve-0:2.9.2-1.1.s390x",
            "openSUSE Tumbleweed:python313-soupsieve-0:2.9.2-1.1.x86_64",
            "openSUSE Tumbleweed:python314-soupsieve-0:2.9.2-1.1.aarch64",
            "openSUSE Tumbleweed:python314-soupsieve-0:2.9.2-1.1.ppc64le",
            "openSUSE Tumbleweed:python314-soupsieve-0:2.9.2-1.1.s390x",
            "openSUSE Tumbleweed:python314-soupsieve-0:2.9.2-1.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2026-09-23T00:00:00Z",
          "details": "moderate"
        }
      ],
      "title": "CVE-2026-86000"
    }
  ]
}

CVE-2026-85999 (GCVE-0-2026-85999)

Vulnerability from cvelistv5 – Published: 2026-09-17 15:23 – Updated: 2026-09-22 20:29

Title

Soup Sieve: Polynomial-time ReDoS (O(n²)) in the whitespace/comment trimming regex `RE_WS_END` (triggers on VALID selectors)

Summary

Soup Sieve is a CSS selector library designed to be used with Beautiful Soup 4. Prior to 2.9, selector_iter in src/soupsieve/css_parser.py trims the raw selector with RE_WS_END, an end-anchored WSC whitespace-and-comment expression used with search(), so the regular expression engine retries a greedy scan at every starting offset. An attacker-controlled valid selector containing a long internal whitespace run, or a selector containing a long CSS comment run followed by another token, causes quadratic CPU work before tokenization. User-controlled selectors can reach the path through soupsieve.compile() and BeautifulSoup.select(), while applications using only hard-coded selectors are unaffected. This root cause is separate from the IDENTIFIER and VALUE backtracking vulnerability because the cost occurs in RE_WS_END.search during trimming rather than token matching. The resulting CPU consumption can hold the Python GIL, exhaust workers, and stall a service without causing memory corruption or code execution. The issue is fixed in version 2.9.

Severity

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-22 16:55 UTC

CWE

CWE-400 - Uncontrolled Resource Consumption
CWE-1333 - Inefficient Regular Expression Complexity

Assigner

GitHub_M mitre root

References

3 references

URL	Tags
https://github.com/facelessuser/soupsieve/securit…	x_refsource_CONFIRM
https://github.com/facelessuser/soupsieve/commit/…	x_refsource_MISC
https://github.com/facelessuser/soupsieve/release…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
facelessuser	soupsieve	Affected: < 2.9

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-85999",
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                    "Technical Impact": "partial"
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                "role": "CISA Coordinator",
                "timestamp": "2026-09-22T16:55:16.479978Z",
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          "value": "Soup Sieve is a CSS selector library designed to be used with Beautiful Soup 4. Prior to 2.9, selector_iter in src/soupsieve/css_parser.py trims the raw selector with RE_WS_END, an end-anchored WSC whitespace-and-comment expression used with search(), so the regular expression engine retries a greedy scan at every starting offset. An attacker-controlled valid selector containing a long internal whitespace run, or a selector containing a long CSS comment run followed by another token, causes quadratic CPU work before tokenization. User-controlled selectors can reach the path through soupsieve.compile() and BeautifulSoup.select(), while applications using only hard-coded selectors are unaffected. This root cause is separate from the IDENTIFIER and VALUE backtracking vulnerability because the cost occurs in RE_WS_END.search during trimming rather than token matching. The resulting CPU consumption can hold the Python GIL, exhaust workers, and stall a service without causing memory corruption or code execution. The issue is fixed in version 2.9."
        }
      ],
      "metrics": [
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        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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          "name": "https://github.com/facelessuser/soupsieve/security/advisories/GHSA-j934-xhv5-fg8f",
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            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/facelessuser/soupsieve/security/advisories/GHSA-j934-xhv5-fg8f"
        },
        {
          "name": "https://github.com/facelessuser/soupsieve/commit/cf198fcddc9230f06ed39f974eba0ce076b85cda",
          "tags": [
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          ],
          "url": "https://github.com/facelessuser/soupsieve/commit/cf198fcddc9230f06ed39f974eba0ce076b85cda"
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  },
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CVE-2026-86000 (GCVE-0-2026-86000)

Vulnerability from cvelistv5 – Published: 2026-09-17 15:21 – Updated: 2026-09-17 15:45

Title

Soup Sieve: Polynomial-time ReDoS (O(n²)) in the `IDENTIFIER` / `VALUE` selector sub-patterns

Summary

Soup Sieve is a CSS selector library designed to be used with Beautiful Soup 4. Prior to 2.9, the selector parser in src/soupsieve/css_parser.py defines IDENTIFIER with adjacent quantified groups over overlapping character classes, and VALUE embeds IDENTIFIER for attribute selectors. When an attacker-controlled selector contains a long identifier or unquoted attribute-value run followed by input that makes the overall match fail, the regular expression engine explores quadratically many splits between the overlapping groups. User-controlled selectors can reach this path through soupsieve.compile(), soupsieve.select(), or BeautifulSoup.select(), while applications using only hard-coded selectors are unaffected. The resulting CPU consumption can hold the Python GIL, exhaust application workers, and stall a service; successful plain identifier matches are linear, and the issue does not cause memory corruption or code execution. The issue is fixed in version 2.9.

Severity

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-17 15:45 UTC

CWE

CWE-400 - Uncontrolled Resource Consumption
CWE-1333 - Inefficient Regular Expression Complexity

Assigner

GitHub_M mitre root

References

3 references

URL	Tags
https://github.com/facelessuser/soupsieve/securit…	x_refsource_CONFIRM
https://github.com/facelessuser/soupsieve/commit/…	x_refsource_MISC
https://github.com/facelessuser/soupsieve/release…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
facelessuser	soupsieve	Affected: < 2.9

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
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      }
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          "product": "soupsieve",
          "vendor": "facelessuser",
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

OPENSUSE-SU-2026:11866-1

CVE-2026-85999 (GCVE-0-2026-85999)

CVE-2026-86000 (GCVE-0-2026-86000)

Tags

Sightings

Nomenclature

Related by attack behaviour