CVE-2026-7258 (GCVE-0-2026-7258)

Vulnerability from cvelistv5 – Published: 2026-05-10 04:28 – Updated: 2026-05-11 13:06
VLAI?
Title
Out-of-bounds read in urldecode() on NetBSD
Summary
In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, some functions, including urldecode(), pass signed char to ctype functions (like isxdigit()). On the systems with default signed char and optimized table-lookup ctype functions - such as NetBSD - this can lead to accessing array with negative offset, which can trigger a denial of service.
Severity ?
6.3 (Medium)
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L/U:Amber
CWE
Assigner
php
References
Impacted products
Vendor Product Version
PHP Group PHP Affected: 8.2.* , < 8.2.31 (semver)
Affected: 8.3.* , < 8.3.31 (semver)
Affected: 8.4.* , < 8.4.21 (semver)
Affected: 8.5.* , < 8.5.6 (semver)
Create a notification for this product.
Date Public ?
2026-05-07 00:00
Credits
xfourj Ilija Tovilo
Show details on NVD website
To clipboard 

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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.