Vulnerability-Lookup

usn-8321-1

Vulnerability from osv_ubuntu

Published

2026-05-27 13:02

Modified

2026-06-30 15:55

Summary

papers vulnerability

Details

It was discovered that Papers incorrectly handled PDF /GoToR actions. If a user were tricked into opening a specially crafted PDF file, an attacker could use this issue to manipulate command lines and possibly execute arbitrary code.

References

URL

Type

	https://ubuntu.com/security/notices/USN-8321-1	ADVISORY
	https://ubuntu.com/security/CVE-2026-46529	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-46529",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:25.10"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "gir1.2-papers-4.0",
            "binary_version": "48.0-1ubuntu1.25.10.4"
          },
          {
            "binary_name": "libppsdocument-4.0-5",
            "binary_version": "48.0-1ubuntu1.25.10.4"
          },
          {
            "binary_name": "libppsview-4.0-4",
            "binary_version": "48.0-1ubuntu1.25.10.4"
          },
          {
            "binary_name": "papers",
            "binary_version": "48.0-1ubuntu1.25.10.4"
          },
          {
            "binary_name": "papers-common",
            "binary_version": "48.0-1ubuntu1.25.10.4"
          }
        ]
      },
      "package": {
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        "name": "papers",
        "purl": "pkg:deb/ubuntu/papers@48.0-1ubuntu1.25.10.4?arch=source\u0026distro=questing"
      },
      "ranges": [
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            {
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            },
            {
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            }
          ],
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        }
      ],
      "versions": [
        "48.0-1ubuntu1",
        "48.0-1ubuntu1.25.10.1",
        "48.0-1ubuntu1.25.10.2",
        "48.0-1ubuntu1.25.10.3"
      ]
    },
    {
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            {
              "id": "CVE-2026-46529",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:26.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
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          },
          {
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            "binary_version": "50.1-0ubuntu1.1"
          },
          {
            "binary_name": "libppsview-4.0-5",
            "binary_version": "50.1-0ubuntu1.1"
          },
          {
            "binary_name": "papers",
            "binary_version": "50.1-0ubuntu1.1"
          },
          {
            "binary_name": "papers-common",
            "binary_version": "50.1-0ubuntu1.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "papers",
        "purl": "pkg:deb/ubuntu/papers@50.1-0ubuntu1.1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "50.1-0ubuntu1.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "48.0-1ubuntu1",
        "49.1-1ubuntu1",
        "49.2-1ubuntu1",
        "49.2-3ubuntu1",
        "50~beta-0ubuntu2",
        "50.0-0ubuntu1",
        "50.0-0ubuntu2",
        "50.1-0ubuntu1"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that Papers incorrectly handled PDF /GoToR actions. If a\nuser were tricked into opening a specially crafted PDF file, an attacker\ncould use this issue to manipulate command lines and possibly execute\narbitrary code.",
  "id": "USN-8321-1",
  "modified": "2026-06-30T15:55:20Z",
  "published": "2026-05-27T13:02:52Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8321-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-46529"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "papers vulnerability",
  "upstream": [
    "UBUNTU-CVE-2026-46529"
  ]
}

ubuntu-cve-2026-46529

Vulnerability from osv_ubuntu

Published

2026-05-20 00:00

Modified

2026-06-30 16:22

Summary

Details

Atril Document Viewer is the default document reader of the MATE desktop environment for Linux. A single-click remote code execution vulnerability in versions prior to 1.26.3 and 1.28.4 allows an attacker to achieve arbitrary code execution as the user by tricking them into clicking a link inside a malicious PDF document. The PDF can be packaged as a polyglot file that is simultaneously a valid PDF and a valid ELF shared library, making the attack a single-file, single-click, configuration-independent RCE on stock atril installations. The root cause is shell/ev-application.c:ev_spawn, which builds a command line from attacker-controlled PDF link-destination fields without applying g_shell_quote. The cmdline is then handed to g_app_info_create_from_commandline, which shell-parses it back into argv — splitting any embedded --gtk-module=PATH into a separate argv element. GTK then dlopen()s the path during init, running any __attribute__((constructor)) it finds. Versions 1.26.3 and 1.28.4 contain a patch for the issue. This is the same defect class as CVE-2023-51698 (CBT --checkpoint-action injection in comics-document.c, fixed in 1.6.2) but in a different code path (shell/ev-application.c) that the original patch did not touch.

Severity

8.4 (High)


                    
                      CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

7.8 (High)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-46529	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-46529	REPORT
	https://www.openwall.com/lists/oss-security/2026/…	REPORT
	https://medeiros.zip/posts/CVE-2026-46529-evince	REPORT
	https://blogs.gnome.org/mcatanzaro/2026/05/21/sin…	REPORT
	https://ubuntu.com/security/notices/USN-8295-1	ADVISORY
	https://ubuntu.com/security/notices/USN-8321-1	ADVISORY

JSON

To clipboard

{
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            "binary_version": "3.18.2-1ubuntu4.6"
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    },
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    },
    {
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          },
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          },
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      "ranges": [
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            {
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        "48.0-1ubuntu1",
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        "48.1-3ubuntu2"
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    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
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        "name": "papers",
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      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
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            {
              "fixed": "48.0-1ubuntu1.25.10.4"
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          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "48.0-1ubuntu1",
        "48.0-1ubuntu1.25.10.1",
        "48.0-1ubuntu1.25.10.2",
        "48.0-1ubuntu1.25.10.3"
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    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "atril",
            "binary_version": "1.28.2-1"
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            "binary_name": "atril-common",
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            "binary_name": "gir1.2-atrildocument-1.5.0",
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            "binary_name": "gir1.2-atrilview-1.5.0",
            "binary_version": "1.28.2-1"
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            "binary_name": "libatrildocument3t64",
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            "binary_name": "libatrilview3t64",
            "binary_version": "1.28.2-1"
          }
        ]
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      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "atril",
        "purl": "pkg:deb/ubuntu/atril@1.28.2-1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.26.2-5",
        "1.28.2-1"
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    },
    {
      "ecosystem_specific": {
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        "binaries": [
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      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "evince",
        "purl": "pkg:deb/ubuntu/evince@49~alpha-2ubuntu2.1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
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            },
            {
              "fixed": "49~alpha-2ubuntu2.1"
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          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "48.1-3ubuntu2",
        "49~alpha-2",
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    },
    {
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      "package": {
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        "49.1-1ubuntu1",
        "49.2-1ubuntu1",
        "49.2-3ubuntu1",
        "50~beta-0ubuntu2",
        "50.0-0ubuntu1",
        "50.0-0ubuntu2",
        "50.1-0ubuntu1"
      ]
    }
  ],
  "aliases": [],
  "details": "Atril Document Viewer is the default document reader of the MATE desktop environment for Linux. A single-click remote code execution vulnerability in versions prior to 1.26.3 and 1.28.4 allows an attacker to achieve arbitrary code execution as the user by tricking them into clicking a link inside a malicious PDF document. The PDF can be packaged as a polyglot file that is simultaneously a valid PDF and a valid ELF shared library, making the attack a single-file, single-click, configuration-independent RCE on stock atril installations. The root cause is `shell/ev-application.c:ev_spawn`, which builds a command line from attacker-controlled PDF link-destination fields without applying `g_shell_quote`. The cmdline is then handed to `g_app_info_create_from_commandline`, which shell-parses it back into argv \u2014 splitting any embedded `--gtk-module=PATH` into a separate argv element. GTK then `dlopen()`s the path during init, running any `__attribute__((constructor))` it finds. Versions 1.26.3 and 1.28.4 contain a patch for the issue. This is the same defect class as CVE-2023-51698 (CBT `--checkpoint-action` injection in `comics-document.c`, fixed in 1.6.2) but in a different code path (`shell/ev-application.c`) that the original patch did not touch.",
  "id": "UBUNTU-CVE-2026-46529",
  "modified": "2026-06-30T16:22:50Z",
  "published": "2026-05-20T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-46529"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-46529"
    },
    {
      "type": "REPORT",
      "url": "https://www.openwall.com/lists/oss-security/2026/05/19/34"
    },
    {
      "type": "REPORT",
      "url": "https://medeiros.zip/posts/CVE-2026-46529-evince"
    },
    {
      "type": "REPORT",
      "url": "https://blogs.gnome.org/mcatanzaro/2026/05/21/single-click-code-execution-exploit-for-evince-atril-and-xreader/"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8295-1"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8321-1"
    }
  ],
  "related": [
    "USN-8295-1",
    "USN-8321-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    },
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-46529"
  ]
}

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.

Detection rules are retrieved from Rulezet.

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.

Action not permitted

usn-8321-1

Vulnerability from osv_ubuntu

ubuntu-cve-2026-46529

Vulnerability from osv_ubuntu

Tags

Sightings

Nomenclature