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← Actionable
Medium, CVSS 5.4amended

Stack overflow in phar with circular symlinks

CVE-2026-7260GHSA-vc5h-9ppw-p5f3

What to do

Vendor fix available. Upgrade each affected package to the fixed version on its release line (php 8.5.9, 8.4.24, 8.3.33, 8.2.33; libphp 8.5.9, 8.4.24, 8.3.33, 8.2.33; php-min 8.5.9, 8.4.24, 8.3.33, 8.2.33), redeploy, then verify what is actually installed.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

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Affected packages

  • Bitnami php

    Affected
    >= 8.2.0, < 8.2.33>= 8.3.0, < 8.3.33>= 8.4.0, < 8.4.24>= 8.5.0, < 8.5.9
    Fixed in
    8.5.9, 8.3.33, 8.2.33, 8.4.24

  • Bitnami libphp

    Affected
    >= 8.2.0, < 8.2.33>= 8.3.0, < 8.3.33>= 8.4.0, < 8.4.24>= 8.5.0, < 8.5.9
    Fixed in
    8.5.9, 8.3.33, 8.2.33, 8.4.24

  • Bitnami php-min

    Affected
    >= 8.2.0, < 8.2.33>= 8.3.0, < 8.3.33>= 8.4.0, < 8.4.24>= 8.5.0, < 8.5.9
    Fixed in
    8.5.9, 8.3.33, 8.2.33, 8.4.24

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS 4.0
5.4 · CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:U/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 · score source
EPSS
  • CVE-2026-7260: 0.11% estimated exploitation activity in the next 30 days; percentile 1.49 (FIRST EPSS, 2026-11-10). This is a model estimate, not proof of exploitation or customer exposure.
Source description

As published by the source; long descriptions are shortened.

Circular symbolic links in phar archives could lead to unbounded recursion, exhausting the C stack and crashing the PHP process, in PHP versions from 8.2.* before 8.2.33, from 8.3.* before 8.3.33, from 8.4.* before 8.4.24, and from 8.5.* before 8.5.9.

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 3 · amended ·

    Amended from osv record BIT-php-min-2026-7260

  2. Revision 2 · amended ·

    Amended from osv record BIT-php-2026-7260

  3. Revision 1 · created ·

    Published from osv record BIT-libphp-2026-7260

Agent brief

Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.

# Patch Next advisory brief: CVE-2026-7260

Advisory: Stack overflow in phar with circular symlinks
IDs: CVE-2026-7260, GHSA-vc5h-9ppw-p5f3
Record: https://patchnext.com/advisories/cve-2026-7260 (revision 3, source checked 11 Nov 2026, 07:55 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 5.4)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: php 8.5.9, 8.4.24, 8.3.33, 8.2.33; libphp 8.5.9, 8.4.24, 8.3.33, 8.2.33; php-min 8.5.9, 8.4.24, 8.3.33, 8.2.33. A vendor fix does not mean a deployment is fixed.

## Affected components
- Bitnami php: affected >= 8.2.0, < 8.2.33; >= 8.3.0, < 8.3.33; >= 8.4.0, < 8.4.24; >= 8.5.0, < 8.5.9; fixed in 8.5.9, 8.3.33, 8.2.33, 8.4.24
- Bitnami libphp: affected >= 8.2.0, < 8.2.33; >= 8.3.0, < 8.3.33; >= 8.4.0, < 8.4.24; >= 8.5.0, < 8.5.9; fixed in 8.5.9, 8.3.33, 8.2.33, 8.4.24
- Bitnami php-min: affected >= 8.2.0, < 8.2.33; >= 8.3.0, < 8.3.33; >= 8.4.0, < 8.4.24; >= 8.5.0, < 8.5.9; fixed in 8.5.9, 8.3.33, 8.2.33, 8.4.24

## Suggested inspection (read-only)
- Bitnami php: check the installed version with your package manager.
- Bitnami libphp: check the installed version with your package manager.
- Bitnami php-min: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on php, libphp, php-min.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/BIT-libphp-2026-7260 (OSV record BIT-libphp-2026-7260 lists affected ranges: Bitnami libphp >=8.2.0 =8.3.0 =8.4.0 =8.5.0 <8.5.9 (fixed))
- Verified: https://osv.dev/vulnerability/BIT-php-2026-7260 (OSV record BIT-php-2026-7260 lists affected ranges: Bitnami php >=8.2.0 =8.3.0 =8.4.0 =8.5.0 <8.5.9 (fixed))
- Verified: https://osv.dev/vulnerability/BIT-php-min-2026-7260 (OSV record BIT-php-min-2026-7260 lists affected ranges: Bitnami php-min >=8.2.0 =8.3.0 =8.4.0 =8.5.0 <8.5.9 (fixed))

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