DEBIAN-CVE-2026-73270

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Source

https://security-tracker.debian.org/tracker/CVE-2026-73270

Import Source

https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-73270.json

JSON Data

https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-73270

Upstream

CVE-2026-73270

Published

2026-09-01T15:17:25Z

Modified

2026-09-17T16:00:07Z

Severity

8.2 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/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 CVSS Calculator

Summary

[none]

Details

Improper Handling of Case Sensitivity vulnerability in Erlang/OTP inets httpd allows a remote unauthenticated attacker to read files inside a mod_auth protected directory by requesting them with different casing, on deployments whose filesystem is case-insensitive. mod_auth:secret_path/3 decides whether a resolved filesystem path lies inside a protected directory block by running the configured directory path through re:run/3 without the caseless option. A request for /secret/file against a directory configured as /Secret therefore does not match, so the request is treated as unprotected and no authentication challenge is issued, while the filesystem resolves the differently cased path to the same file and mod_get serves it. Deployments on case-sensitive filesystems are unaffected, because there the filesystem itself rejects the mismatched casing. This issue affects OTP from OTP 17.0 before OTP 27.3.4.17, from OTP 28.0 before OTP 28.5.0.6, and from OTP 29.0 before OTP 29.0.6, corresponding to inets from 5.10 before 9.3.2.7, from 9.4 before 9.6.2.3, and from 9.7 before 9.7.2. Whether OTP before OTP 17.0, corresponding to inets before 5.10, is affected is unknown.

References

https://security-tracker.debian.org/tracker/CVE-2026-73270

Affected packages

Debian:12 / erlang

Package

Name: erlang
Purl: pkg:deb/debian/erlang?arch=source&distro=bookworm

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

1:25.*

1:25.2.3+dfsg-1

1:25.2.3+dfsg-1+deb12u1

1:25.2.3+dfsg-1+deb12u2

1:25.2.3+dfsg-1+deb12u3

1:25.2.3+dfsg-1+deb12u4

1:25.3.2.8+dfsg-1

1:25.3.2.10+dfsg-1

1:25.3.2.10+dfsg-2

1:25.3.2.11+dfsg-1

1:25.3.2.12+dfsg-1

1:25.3.2.12+dfsg-2

1:25.3.2.12+dfsg-3

1:26.*

1:26.0~rc2+dfsg-1

1:26.0~rc3+dfsg-1

1:26.0+dfsg-1

1:26.0.1+dfsg-1

1:26.0.2+dfsg-1

1:26.1.2+dfsg-1

1:26.2.1+dfsg-1

1:26.2.4+dfsg-1

1:27.*

1:27.0~rc3+dfsg-1

1:27.0~rc3+dfsg-2

1:27.0~rc3+dfsg-3

1:27.0~rc3+dfsg-4

1:27.0+dfsg-1

1:27.0.1+dfsg-1

1:27.0.1+dfsg-2

1:27.0.1+dfsg-3

1:27.1.2+dfsg-1

1:27.2+dfsg-1

1:27.2+dfsg-2

1:27.2+dfsg-3~exp1

1:27.2.1+dfsg-1

1:27.2.1+dfsg-2

1:27.2.2+dfsg-1

1:27.2.3+dfsg-1

1:27.2.4+dfsg-1

1:27.3+dfsg-1

1:27.3.1+dfsg-1

1:27.3.2+dfsg-1

1:27.3.3+dfsg-1

1:27.3.4+dfsg-1

1:27.3.4.1+dfsg-1

1:27.3.4.3+dfsg-1

1:27.3.4.4+dfsg-1

1:27.3.4.6+dfsg-1

1:27.3.4.8+dfsg-1

1:27.3.4.9+dfsg-1

1:27.3.4.10+dfsg-1

1:27.3.4.11+dfsg-1

1:27.3.4.11+dfsg-2

1:27.3.4.11+dfsg-3

1:27.3.4.11+dfsg-4

1:27.3.4.11+dfsg-5

1:27.3.4.11+dfsg-6

1:27.3.4.11+dfsg-7

1:27.3.4.12+dfsg-1

1:28.*

1:28.0+dfsg-1

1:28.0.1+dfsg-1

1:28.0.2+dfsg-1

1:28.0.4+dfsg-1

1:28.1.1+dfsg-1

1:28.2+dfsg-1

1:28.3+dfsg-1

1:28.3.1+dfsg-1

1:29.*

1:29.0~rc1+dfsg-1

1:29.0~rc1+dfsg-2

1:29.0~rc2+dfsg-1

1:29.0~rc3+dfsg-1

1:29.0~rc3+dfsg-2

1:29.0~rc3+dfsg-3

1:29.0~rc3+dfsg-4

1:29.0+dfsg-1

1:29.0+dfsg-2

1:29.0.1+dfsg-1

1:29.0.2+dfsg-1

1:29.0.3+dfsg-1

1:29.0.4+dfsg-1

1:29.0.6+dfsg-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Database specific

source

"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-73270.json"

Debian:13 / erlang

Package

Name: erlang
Purl: pkg:deb/debian/erlang?arch=source&distro=trixie

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

1:27.*

1:27.3.4.1+dfsg-1

1:27.3.4.1+dfsg-1+deb13u1

1:27.3.4.1+dfsg-1+deb13u2

1:27.3.4.1+dfsg-1+deb13u3

1:27.3.4.3+dfsg-1

1:27.3.4.4+dfsg-1

1:27.3.4.6+dfsg-1

1:27.3.4.8+dfsg-1

1:27.3.4.9+dfsg-1

1:27.3.4.10+dfsg-1

1:27.3.4.11+dfsg-1

1:27.3.4.11+dfsg-2

1:27.3.4.11+dfsg-3

1:27.3.4.11+dfsg-4

1:27.3.4.11+dfsg-5

1:27.3.4.11+dfsg-6

1:27.3.4.11+dfsg-7

1:27.3.4.12+dfsg-1

1:28.*

1:28.0+dfsg-1

1:28.0.1+dfsg-1

1:28.0.2+dfsg-1

1:28.0.4+dfsg-1

1:28.1.1+dfsg-1

1:28.2+dfsg-1

1:28.3+dfsg-1

1:28.3.1+dfsg-1

1:29.*

1:29.0~rc1+dfsg-1

1:29.0~rc1+dfsg-2

1:29.0~rc2+dfsg-1

1:29.0~rc3+dfsg-1

1:29.0~rc3+dfsg-2

1:29.0~rc3+dfsg-3

1:29.0~rc3+dfsg-4

1:29.0+dfsg-1

1:29.0+dfsg-2

1:29.0.1+dfsg-1

1:29.0.2+dfsg-1

1:29.0.3+dfsg-1

1:29.0.4+dfsg-1

1:29.0.6+dfsg-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Database specific

source

"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-73270.json"

Debian:14 / erlang

Package

Name: erlang
Purl: pkg:deb/debian/erlang?arch=source&distro=forky

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

1:29.0.6+dfsg-1

Affected versions

1:27.*

1:27.3.4.1+dfsg-1

1:27.3.4.3+dfsg-1

1:27.3.4.4+dfsg-1

1:27.3.4.6+dfsg-1

1:27.3.4.8+dfsg-1

1:27.3.4.9+dfsg-1

1:27.3.4.10+dfsg-1

1:27.3.4.11+dfsg-1

1:27.3.4.11+dfsg-2

1:27.3.4.11+dfsg-3

1:27.3.4.11+dfsg-4

1:27.3.4.11+dfsg-5

1:27.3.4.11+dfsg-6

1:27.3.4.11+dfsg-7

1:27.3.4.12+dfsg-1

1:28.*

1:28.0+dfsg-1

1:28.0.1+dfsg-1

1:28.0.2+dfsg-1

1:28.0.4+dfsg-1

1:28.1.1+dfsg-1

1:28.2+dfsg-1

1:28.3+dfsg-1

1:28.3.1+dfsg-1

1:29.*

1:29.0~rc1+dfsg-1

1:29.0~rc1+dfsg-2

1:29.0~rc2+dfsg-1

1:29.0~rc3+dfsg-1

1:29.0~rc3+dfsg-2

1:29.0~rc3+dfsg-3

1:29.0~rc3+dfsg-4

1:29.0+dfsg-1

1:29.0+dfsg-2

1:29.0.1+dfsg-1

1:29.0.2+dfsg-1

1:29.0.3+dfsg-1

1:29.0.4+dfsg-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Database specific

source

"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-73270.json"