CVE-2026-92162

Source
https://cve.org/CVERecord?id=CVE-2026-92162
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-92162.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-92162
Aliases
  • GHSA-v2gw-v9h5-9q4x
Downstream
Related
Published
2026-10-20T14:39:50Z
Modified
2026-10-21T10:50:19Z
Severity
  • 7.2 (High) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
Flatpak vulnerable to path traversal via unvalidated "arch" parameter in DeployAppstream
Details

Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. Prior to version 1.18.1, on systems where at least one OCI remote is configured (most common on Fedora systems), a malicious local user in an active local session could use a crafted architecture name to trick the flatpak-system-helper process into creating a root-owned directory tree with contents determined by the OCI remote, plus a root-owned lock file and icons directory, outside the intended root directory. If this vulnerability is combined with other vulnerabilities also fixed in 1.18.1, the combination can lead to local root privilege escalation. This particular vulnerability is not believed to be exploitable if there are no OCI remotes configured (common on non-Fedora systems). Version 1.18.1 patches the issue.

Database specific
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-22"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92162.json"
}
References

Affected packages

Git / github.com/flatpak/flatpak

Affected ranges

Type
GIT
Repo
https://github.com/flatpak/flatpak
Events
Database specific
Show details
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "1.18.1"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StringRangeExpression"
        },
        {
            "range":  [
                {
                    "fixed":  "01773f84021dd090b2426f79675f94f2564f9279"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        },
        {
            "range":  [
                {
                    "fixed":  "19456b916842b079af833a86b9ab89c5db154b92"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        },
        {
            "range":  [
                {
                    "fixed":  "aeb369a2723506fabc1f701ef7a0dc6c97c4b983"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        }
    ]
}

Affected versions

0.*
0.1
0.10.0
0.10.1
0.10.2
0.11.1
0.11.2
0.11.3
0.11.4
0.11.5
0.11.6
0.11.7
0.11.8
0.11.8.1
0.11.8.2
0.11.8.3
0.2
0.2.1
0.3
0.3.1
0.3.2
0.3.3
0.3.4
0.3.5
0.3.6
0.4.0
0.4.1
0.4.10
0.4.11
0.4.12
0.4.13
0.4.2
0.4.2.1
0.4.3
0.4.4
0.4.5
0.4.6
0.4.7
0.4.8
0.4.9
0.5.0
0.5.1
0.5.2
0.6.0
0.6.1
0.6.10
0.6.11
0.6.12
0.6.13
0.6.14
0.6.2
0.6.3
0.6.4
0.6.5
0.6.6
0.6.7
0.6.8
0.6.9
0.8.0
0.8.1
0.9.1
0.9.10
0.9.11
0.9.12
0.9.2
0.9.3
0.9.4
0.9.5
0.9.6
0.9.7
0.9.8
0.9.9
0.9.98
0.9.98.1
0.9.98.2
0.9.99
0.99.1
0.99.2
0.99.3
1.*
1.0.0
1.0.1
1.0.2
1.0.3
1.1.0
1.1.1
1.1.2
1.1.3
1.10.0
1.10.1
1.11.1
1.11.2
1.11.3
1.12.0
1.13.1
1.13.2
1.13.3
1.14.0
1.15.0
1.15.1
1.15.10
1.15.11
1.15.12
1.15.2
1.15.3
1.15.4
1.15.6
1.15.7
1.15.8
1.15.9
1.15.91
1.16.0
1.16.1
1.17.0
1.17.1
1.17.2
1.17.3
1.17.4
1.17.5
1.17.6
1.17.7
1.18.0
1.2.0
1.2.1
1.3.0
1.3.1
1.3.2
1.3.3
1.3.4
1.4.0
1.5.0
1.5.1
1.5.2
1.6.0
1.6.1
1.6.2
1.7.1
1.7.2
1.7.3
1.8.0
1.9.1
1.9.2
1.9.3

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-92162.json"
vanir_signatures
[
    {
        "deprecated":  false,
        "digest":  {
            "function_hash":  "126271828766093234775715824355838056974",
            "length":  292
        },
        "id":  "CVE-2026-92162-20a3559d",
        "signature_type":  "Function",
        "signature_version":  "v1",
        "source":  "https://github.com/flatpak/flatpak/commit/19456b916842b079af833a86b9ab89c5db154b92",
        "target":  {
            "file":  "common/flatpak-ref-utils.c",
            "function":  "is_valid_remote_name"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
            "function_hash":  "125583951298092676895481159591435256762",
            "length":  7925
        },
        "id":  "CVE-2026-92162-2e7f0b7d",
        "signature_type":  "Function",
        "signature_version":  "v1",
        "source":  "https://github.com/flatpak/flatpak/commit/01773f84021dd090b2426f79675f94f2564f9279",
        "target":  {
            "file":  "system-helper/flatpak-system-helper.c",
            "function":  "handle_deploy"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
            "function_hash":  "8121134386927001398217267954807740717",
            "length":  1393
        },
        "id":  "CVE-2026-92162-4e24e519",
        "signature_type":  "Function",
        "signature_version":  "v1",
        "source":  "https://github.com/flatpak/flatpak/commit/01773f84021dd090b2426f79675f94f2564f9279",
        "target":  {
            "file":  "system-helper/flatpak-system-helper.c",
            "function":  "handle_install_bundle"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
            "function_hash":  "58746212148026447831687156193047305020",
            "length":  2401
        },
        "id":  "CVE-2026-92162-56eba996",
        "signature_type":  "Function",
        "signature_version":  "v1",
        "source":  "https://github.com/flatpak/flatpak/commit/01773f84021dd090b2426f79675f94f2564f9279",
        "target":  {
            "file":  "system-helper/flatpak-system-helper.c",
            "function":  "handle_update_remote"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
            "function_hash":  "120415637857993384647819369055318048053",
            "length":  3977
        },
        "id":  "CVE-2026-92162-74564c22",
        "signature_type":  "Function",
        "signature_version":  "v1",
        "source":  "https://github.com/flatpak/flatpak/commit/01773f84021dd090b2426f79675f94f2564f9279",
        "target":  {
            "file":  "system-helper/flatpak-system-helper.c",
            "function":  "handle_deploy_appstream"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
            "function_hash":  "121405783823749670610215031429922308180",
            "length":  2081
        },
        "id":  "CVE-2026-92162-761fa1b0",
        "signature_type":  "Function",
        "signature_version":  "v1",
        "source":  "https://github.com/flatpak/flatpak/commit/01773f84021dd090b2426f79675f94f2564f9279",
        "target":  {
            "file":  "system-helper/flatpak-system-helper.c",
            "function":  "handle_configure_remote"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
            "function_hash":  "238681822510721551006283740815463484530",
            "length":  1327
        },
        "id":  "CVE-2026-92162-7c416c9f",
        "signature_type":  "Function",
        "signature_version":  "v1",
        "source":  "https://github.com/flatpak/flatpak/commit/01773f84021dd090b2426f79675f94f2564f9279",
        "target":  {
            "file":  "system-helper/flatpak-system-helper.c",
            "function":  "handle_remove_local_ref"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
            "line_hashes":  [
                "92736542745389674858088021070013416663",
                "195129784407135879075303966863404332174",
                "117835201077124438671577447984722827814",
                "27141310862705759705595207691029764499"
            ],
            "threshold":  0.9
        },
        "id":  "CVE-2026-92162-7e83ab95",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://github.com/flatpak/flatpak/commit/19456b916842b079af833a86b9ab89c5db154b92",
        "target":  {
            "file":  "common/flatpak-ref-utils-private.h"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
            "function_hash":  "203868197328658889502092419303003262656",
            "length":  1498
        },
        "id":  "CVE-2026-92162-90d747d3",
        "signature_type":  "Function",
        "signature_version":  "v1",
        "source":  "https://github.com/flatpak/flatpak/commit/01773f84021dd090b2426f79675f94f2564f9279",
        "target":  {
            "file":  "system-helper/flatpak-system-helper.c",
            "function":  "handle_generate_oci_summary"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
            "line_hashes":  [
                "330828352570512745211341860499485210370",
                "234625385065491327225406546027931264864",
                "332151847707824070989231448750668885666",
                "288704253971614182143061552298810220279",
                "89982972554093954785435172805056522836",
                "144064770450826998468383987527374615741",
                "230517703740965814645011452784278338295",
                "25758617870369576095174518073146819769",
                "277789140612034242495189351929590904861",
                "196196460052005872614948624165204343511",
                "271394149674275202194725395099633370459",
                "28431762190277481314424705209377282467",
                "66050474276290536315394323238652390095",
                "234625385065491327225406546027931264864",
                "289139578843639663884229153446827600772",
                "172614018609220153831197447180021443933",
                "248788069221763629765700247610472105973",
                "106250850249111392821751467903888004707",
                "97835930062629585316410562788996761906",
                "74468302554913091370485735611900448728",
                "75121136740268388336701196069755764026",
                "335785781942718455223358087334281303947",
                "101503925174950720726185083009501946508",
                "90017978398171759452654796369611292846",
                "34147785710405748758945515451582814432",
                "97835930062629585316410562788996761906",
                "74468302554913091370485735611900448728",
                "75121136740268388336701196069755764026",
                "335785781942718455223358087334281303947",
                "101503925174950720726185083009501946508",
                "90017978398171759452654796369611292846",
                "250939444362830824059866808401764638820",
                "153317063930687344431115036320774719863",
                "74468302554913091370485735611900448728",
                "75121136740268388336701196069755764026",
                "335785781942718455223358087334281303947",
                "101503925174950720726185083009501946508",
                "90017978398171759452654796369611292846",
                "241267358948209929689045112009293051122",
                "265144186176750436848404842107303143178",
                "250593920688419692174898620778696836729",
                "89413930478413958589211284511427277508"
            ],
            "threshold":  0.9
        },
        "id":  "CVE-2026-92162-b8e8ecae",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://github.com/flatpak/flatpak/commit/01773f84021dd090b2426f79675f94f2564f9279",
        "target":  {
            "file":  "system-helper/flatpak-system-helper.c"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
            "line_hashes":  [
                "49565243285199383510121397710958620639",
                "295715038708173328870554339229378847644",
                "218686403145759286027249505498872914738",
                "309539905519720800602232668677342094551",
                "235517685693323566237073880941060739223",
                "276994202875206314152635772596012063703",
                "304250397345190184783668904174746524277",
                "288305506782408119640955955314382295866",
                "229024485419888381569360424026376057409",
                "86498676687942976540370284504313953799",
                "339872931635689164774400347413455377471",
                "205596178198798429108221805241641067312",
                "272511690226745621689193396046784445359",
                "140604891813322936885476340857130104664",
                "226308902481202039843434569093101912018",
                "10573296711470263102171475092440192327",
                "62054769227737662620212057178134376219",
                "105135349804760838859480469610730392589",
                "255537771214533412585519837482367370990",
                "140761995614659160522981879343725292511",
                "177332803648801402567121478747873810550",
                "99682476474788288593942841319285589227"
            ],
            "threshold":  0.9
        },
        "id":  "CVE-2026-92162-d1c09eb3",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://github.com/flatpak/flatpak/commit/19456b916842b079af833a86b9ab89c5db154b92",
        "target":  {
            "file":  "common/flatpak-ref-utils.c"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
            "function_hash":  "78381558666253716693589238141013778704",
            "length":  2610
        },
        "id":  "CVE-2026-92162-f46cd2be",
        "signature_type":  "Function",
        "signature_version":  "v1",
        "source":  "https://github.com/flatpak/flatpak/commit/19456b916842b079af833a86b9ab89c5db154b92",
        "target":  {
            "file":  "common/flatpak-ref-utils.c",
            "function":  "_flatpak_decomposed_new"
        }
    }
]
vanir_signatures_modified
"2026-10-21T10:50:19Z"