Vulnerability-Lookup

GHSA-P9R5-QPP4-RJG3

Vulnerability from github – Published: 2026-05-28 21:32 – Updated: 2026-05-29 00:38

Details

Music Player Daemon (MPD) before version 0.24.11 contains a stack buffer overflow vulnerability in the pcm_unpack_24be function in src/pcm/Pack.cxx that allows unauthenticated attackers to corrupt stack memory by triggering an off-by-one write in the PCM decoder plugin. Attackers can issue two MPD commands referencing a malicious HTTP audio source to cause the unpack loop to write 1366 entries into a 1365-entry buffer, overwriting four bytes past the array boundary with three attacker-controlled bytes from an HTTP response body, resulting in daemon termination or potential code execution.

Severity

8.6 (High)


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

8.8 (High)


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

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-49127"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-193"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-28T20:16:26Z",
    "severity": "HIGH"
  },
  "details": "Music Player Daemon (MPD) before version 0.24.11 contains a stack buffer overflow vulnerability in the pcm_unpack_24be function in src/pcm/Pack.cxx that allows unauthenticated attackers to corrupt stack memory by triggering an off-by-one write in the PCM decoder plugin. Attackers can issue two MPD commands referencing a malicious HTTP audio source to cause the unpack loop to write 1366 entries into a 1365-entry buffer, overwriting four bytes past the array boundary with three attacker-controlled bytes from an HTTP response body, resulting in daemon termination or potential code execution.",
  "id": "GHSA-p9r5-qpp4-rjg3",
  "modified": "2026-05-29T00:38:32Z",
  "published": "2026-05-28T21:32:04Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-49127"
    },
    {
      "type": "WEB",
      "url": "https://github.com/MusicPlayerDaemon/MPD/issues/2485"
    },
    {
      "type": "WEB",
      "url": "https://github.com/MusicPlayerDaemon/MPD/commit/59911028c020f84bc2e669da6a1ef88121301274"
    },
    {
      "type": "WEB",
      "url": "https://github.com/MusicPlayerDaemon/MPD/releases/tag/v0.24.11"
    },
    {
      "type": "WEB",
      "url": "https://mstreet97.github.io/security-research/opensource/vulnerability-disclosure/cybersecurity/cve/2026/05/25/Four_Bugs_Reachable_nc.html"
    },
    {
      "type": "WEB",
      "url": "https://raw.githubusercontent.com/MusicPlayerDaemon/MPD/v0.24.11/NEWS"
    },
    {
      "type": "WEB",
      "url": "https://www.musicpd.org/news/2026/05/mpd-0-24-11-released"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/music-player-daemon-stack-buffer-overflow-via-pcm-unpack-24be"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/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:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2026-49127 (GCVE-0-2026-49127)

Vulnerability from cvelistv5 – Published: 2026-05-28 18:59 – Updated: 2026-05-29 19:14 X_Open Source

Title

Music Player Daemon < 0.24.11 Stack Buffer Overflow via pcm_unpack_24be

Summary

Severity

8.8 (High)


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

8.6 (High)


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

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-193 - Off-by-one Error

Assigner

VulnCheck

References

7 references

URL	Tags
https://mstreet97.github.io/security-research/ope…	technical-descriptionexploit
https://www.musicpd.org/news/2026/05/mpd-0-24-11-…	release-notespatch
https://raw.githubusercontent.com/MusicPlayerDaem…	release-notes
https://github.com/MusicPlayerDaemon/MPD/releases…	release-notes
https://github.com/MusicPlayerDaemon/MPD/issues/2485	issue-tracking
https://github.com/MusicPlayerDaemon/MPD/commit/5…	patch
https://www.vulncheck.com/advisories/music-player…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
MusicPlayerDaemon	MPD	Affected: 0 , < 0.24.11 (semver)

Date Public

2026-05-15 00:00

Credits

Matteo Strada Daniele Berardinelli

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-49127",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-29T19:14:21.889149Z",
                "version": "2.0.3"
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "affected",
          "product": "MPD",
          "repo": "https://github.com/MusicPlayerDaemon/MPD",
          "vendor": "MusicPlayerDaemon",
          "versions": [
            {
              "lessThan": "0.24.11",
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          "type": "finder",
          "value": "Matteo Strada"
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          "lang": "en",
          "type": "finder",
          "value": "Daniele Berardinelli"
        }
      ],
      "datePublic": "2026-05-15T00:00:00.000Z",
      "descriptions": [
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          "lang": "en",
          "value": "Music Player Daemon (MPD) before version 0.24.11 contains a stack buffer overflow vulnerability in the pcm_unpack_24be function in src/pcm/Pack.cxx that allows unauthenticated attackers to corrupt stack memory by triggering an off-by-one write in the PCM decoder plugin. Attackers can issue two MPD commands referencing a malicious HTTP audio source to cause the unpack loop to write 1366 entries into a 1365-entry buffer, overwriting four bytes past the array boundary with three attacker-controlled bytes from an HTTP response body, resulting in daemon termination or potential code execution."
        }
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      "metrics": [
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            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
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            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "LOW",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
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              "lang": "en",
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        },
        {
          "tags": [
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          ],
          "url": "https://www.musicpd.org/news/2026/05/mpd-0-24-11-released/"
        },
        {
          "tags": [
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          "tags": [
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          "url": "https://github.com/MusicPlayerDaemon/MPD/issues/2485"
        },
        {
          "tags": [
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          "url": "https://github.com/MusicPlayerDaemon/MPD/commit/59911028c020f84bc2e669da6a1ef88121301274"
        },
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        "x_open-source"
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  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
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    "datePublished": "2026-05-28T18:59:13.786Z",
    "dateReserved": "2026-05-27T17:40:12.738Z",
    "dateUpdated": "2026-05-29T19:14:38.903Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Action not permitted

GHSA-P9R5-QPP4-RJG3

CVE-2026-49127 (GCVE-0-2026-49127)

Tags

Sightings

Nomenclature