CVE-2026-6103

lowPriorität · verfolgen · 13EPSS 0.002 · 5. PerzentilDEUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
0.16% (5th) EPSS
CVSS 3.3 · low
Is it mine?
28 products
Prüfe deine Angriffsfläche
Who says so?
3 sources
osv · cert_bund · nvd

EPSS · bewertet 2026-10-28

phar_tar_number() parses the octal size field of a TAR header into a uint32_t with no overflow check. The field is 11 octal digits wide and holds values up to 0x1FFFFFFFF, so a size above 0xFFFFFFFF silently wraps. The parser then skips the wrong number of data blocks and interprets attacker-controlled file content as the next TAR header, which lets a crafted archive inject entries that PharData reports and extracts as if they were genuine.

01

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

4.3
010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · low–medium · 3.1–4.3

v3.13.3lowCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:Nprimary · NVD / NIST USAusnutzbarkeit 1.8 · Auswirkung 1.4
v3.14.3mediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:Nsecondary · security@php.netAusnutzbarkeit 2.5 · Auswirkung 1.4
v3.13.1lowCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)
02

SSVC

Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.

Exploitation: poc · Automatable: no · Technical Impact: partialcoordinatorcisa_ssvcUS
03

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-190US
04

betroffene Produkte (28)

Betroffene Produkte und Versionsbereiche.

20 von 28 angezeigt
05

Advisories (4)

Hersteller- und Ökosystem-Meldungen dazu.

  • WID-SEC-W-2026-3585PHP: Mehrere SchwachstellenDeutsch2026-09-24csaf · cert_bundDE

    Ein Angreifer kann mehrere Schwachstellen in PHP ausnutzen, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen oder die Integrität zu verletzen.

  • BIT-libphp-2026-6103Phar TAR phar_tar_number() Integer Overflow - Archive Entry Injection2026-10-01vendor · osvUS

    phar_tar_number() parses the octal size field of a TAR header into a uint32_t with no overflow check. The field is 11 octal digits wide and holds values up to 0x1FFFFFFFF, so a size above 0xFFFFFFFF silently wraps. The parser then skips the wrong number of data blocks and interprets attacker-controlled file content as the next TAR header, which lets a crafted archive inject entries that PharData reports and extracts as if they were genuine.

  • BIT-php-2026-6103Phar TAR phar_tar_number() Integer Overflow - Archive Entry Injection2026-10-01vendor · osvUS

    phar_tar_number() parses the octal size field of a TAR header into a uint32_t with no overflow check. The field is 11 octal digits wide and holds values up to 0x1FFFFFFFF, so a size above 0xFFFFFFFF silently wraps. The parser then skips the wrong number of data blocks and interprets attacker-controlled file content as the next TAR header, which lets a crafted archive inject entries that PharData reports and extracts as if they were genuine.

  • BIT-php-min-2026-6103Phar TAR phar_tar_number() Integer Overflow - Archive Entry Injection2026-10-01vendor · osvUS

    phar_tar_number() parses the octal size field of a TAR header into a uint32_t with no overflow check. The field is 11 octal digits wide and holds values up to 0x1FFFFFFFF, so a size above 0xFFFFFFFF silently wraps. The parser then skips the wrong number of data blocks and interprets attacker-controlled file content as the next TAR header, which lets a crafted archive inject entries that PharData reports and extracts as if they were genuine.

06

auch bekannt als (4)

Weitere Namen und Kennungen dieser Entität.

07

quellen

Welche Quellen diesen Datensatz belegen und wann.

osvcert_bundnvdNVDCVE.orgMITRE
veröffentlicht 2026-09-25geändert 2026-10-23
08

Referenzen (1) nvd

Externe Belege — Patches, Meldungen, Analysen.

scry

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