Vulnerability-Lookup

OESA-2026-4014 (CVE-2026-19880)

Vulnerability from osv_openeuler – Published: 2026-09-25 01:27 – Updated: 2026-09-25 01:27 – Source website

Summary

logback security update

Details

Logback is intended as a successor to the popular log4j project.

Security Fix(es):

Path-traversal vulnerability in QOS.CH Sarl Logback-classic on Java (logback-classic module) allows path-traversal vulnerability. More specifically, an MDC-based discriminator value flows unsanitized into a nested FileAppender path, letting an attacker who influences that MDC value (e.g. via an HTTP header) create and append log files outside the intended directory. This issue affects Logback-classic: from 0.9.14 through 1.6.2.(CVE-2026-19880)

Severity

6.3 (Medium)


                    
                      CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:P/AU:N/R:X/V:X/RE:M/U:Green

References

URL

Type

	https://www.openeuler.org/zh/security/security-bu…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-19880	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "noarch": [
          "logback-1.2.8-5.oe2403sp4.noarch.rpm",
          "logback-access-1.2.8-5.oe2403sp4.noarch.rpm",
          "logback-examples-1.2.8-5.oe2403sp4.noarch.rpm",
          "logback-help-1.2.8-5.oe2403sp4.noarch.rpm"
        ],
        "src": [
          "logback-1.2.8-5.oe2403sp4.src.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:24.03-LTS-SP4",
        "name": "logback",
        "purl": "pkg:rpm/openEuler/logback\u0026distro=openEuler-24.03-LTS-SP4"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.2.8-5.oe2403sp4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "noarch": [
          "logback-1.2.8-5.oe2003sp4.noarch.rpm",
          "logback-access-1.2.8-5.oe2003sp4.noarch.rpm",
          "logback-examples-1.2.8-5.oe2003sp4.noarch.rpm",
          "logback-help-1.2.8-5.oe2003sp4.noarch.rpm"
        ],
        "src": [
          "logback-1.2.8-5.oe2003sp4.src.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP4",
        "name": "logback",
        "purl": "pkg:rpm/openEuler/logback\u0026distro=openEuler-20.03-LTS-SP4"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.2.8-5.oe2003sp4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "noarch": [
          "logback-1.2.8-5.oe2203sp4.noarch.rpm",
          "logback-access-1.2.8-5.oe2203sp4.noarch.rpm",
          "logback-examples-1.2.8-5.oe2203sp4.noarch.rpm",
          "logback-help-1.2.8-5.oe2203sp4.noarch.rpm"
        ],
        "src": [
          "logback-1.2.8-5.oe2203sp4.src.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:22.03-LTS-SP4",
        "name": "logback",
        "purl": "pkg:rpm/openEuler/logback\u0026distro=openEuler-22.03-LTS-SP4"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.2.8-5.oe2203sp4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "noarch": [
          "logback-1.2.8-5.oe2403sp1.noarch.rpm",
          "logback-access-1.2.8-5.oe2403sp1.noarch.rpm",
          "logback-examples-1.2.8-5.oe2403sp1.noarch.rpm",
          "logback-help-1.2.8-5.oe2403sp1.noarch.rpm"
        ],
        "src": [
          "logback-1.2.8-5.oe2403sp1.src.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:24.03-LTS-SP1",
        "name": "logback",
        "purl": "pkg:rpm/openEuler/logback\u0026distro=openEuler-24.03-LTS-SP1"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.2.8-5.oe2403sp1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "noarch": [
          "logback-1.2.8-5.oe2403sp3.noarch.rpm",
          "logback-access-1.2.8-5.oe2403sp3.noarch.rpm",
          "logback-examples-1.2.8-5.oe2403sp3.noarch.rpm",
          "logback-help-1.2.8-5.oe2403sp3.noarch.rpm"
        ],
        "src": [
          "logback-1.2.8-5.oe2403sp3.src.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:24.03-LTS-SP3",
        "name": "logback",
        "purl": "pkg:rpm/openEuler/logback\u0026distro=openEuler-24.03-LTS-SP3"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.2.8-5.oe2403sp3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "Medium"
  },
  "details": "Logback is intended as a successor to the popular log4j project.\r\n\r\nSecurity Fix(es):\n\nPath-traversal vulnerability in QOS.CH Sarl Logback-classic on Java (logback-classic module) allows path-traversal vulnerability. More specifically, an MDC-based discriminator value flows unsanitized into a nested FileAppender path, letting an attacker who influences that MDC value (e.g. via an HTTP header) create and append log files outside the intended directory. This issue affects Logback-classic: from 0.9.14 through 1.6.2.(CVE-2026-19880)",
  "id": "OESA-2026-4014",
  "modified": "2026-09-25T01:27:15Z",
  "published": "2026-09-25T01:27:15Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4014"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-19880"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:P/AU:N/R:X/V:X/RE:M/U:Green",
      "type": "CVSS_V4"
    }
  ],
  "summary": "logback security update",
  "upstream": [
    "CVE-2026-19880"
  ]
}

CVE-2026-19880 (GCVE-0-2026-19880)

Vulnerability from cvelistv5 – Published: 2026-08-14 14:31 – Updated: 2026-08-14 19:46

Title

Incomplete protection against CVE-2025-11226

Summary

Severity

6.3 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/S:P/AU:N/RE:M/U:Green

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-14 19:46 UTC

CWE

CWE-22

Assigner

NCSC.ch mitre root Scorecard

References

1 reference

URL	Tags
https://logback.qos.ch/news.html#1.6.3

Impacted products

1 product

Vendor	Product	Version
QOS.CH Sarl	Logback-classic	Affected: 0.9.14 , ≤ 1.6.2 (maven) Unaffected: 1.6.3 (maven)

Credits

York Shen - Yong Shen - PayPal Cyber Security Team (UID 100171)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-19880",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-14T19:46:26.570632Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-14T19:46:37.661Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "affected",
          "modules": [
            "logback-classic"
          ],
          "platforms": [
            "Java"
          ],
          "product": "Logback-classic",
          "vendor": "QOS.CH Sarl",
          "versions": [
            {
              "lessThanOrEqual": "1.6.2",
              "status": "affected",
              "version": "0.9.14",
              "versionType": "maven"
            },
            {
              "status": "unaffected",
              "version": "1.6.3",
              "versionType": "maven"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "York Shen - Yong Shen - PayPal Cyber Security Team (UID 100171)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Path-traversal vulnerability in QOS.CH Sarl Logback-classic on Java (logback-classic module) allows path-traversal vulnerability. More specifically, an \nMDC-based discriminator value flows unsanitized into a nested \nFileAppender path, letting an attacker who influences that MDC value \n(e.g. via an HTTP header)\n create and append log files outside the intended directory. \u003cp\u003e\u003cbr\u003eThis issue affects Logback-classic: from 0.9.14 through 1.6.2.\u003cbr\u003e\u003cbr\u003e\u003c/p\u003e"
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      ],
      "exploits": [
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              "value": "No known exploitation\u003cbr\u003e"
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          "value": "No known exploitation"
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      "impacts": [
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          "descriptions": [
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              "lang": "en",
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      "metrics": [
        {
          "cvssV4_0": {
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            "Recovery": "NOT_DEFINED",
            "Safety": "PRESENT",
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "GREEN",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
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            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/S:P/AU:N/RE:M/U:Green",
            "version": "4.0",
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          "scenarios": [
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    "dateReserved": "2026-08-14T14:30:11.651Z",
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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.
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OESA-2026-4014 (CVE-2026-19880)

CVE-2026-19880 (GCVE-0-2026-19880)

Tags

Sightings

Nomenclature

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