CVE-2022-39261 [High] | Path Traversal in Twig

Twig is a template language for PHP. Versions 1.x prior to 1.44.7, 2.x prior to 2.15.3, and 3.x prior to 3.4.3 encounter an issue when the filesystem loader loads templates for which the name is a user input. It is possible to use the `source` or `include` statement to read arbitrary files from outside the templates' directory when using a namespace like `@somewhere/../some.file`. In such a case, validation is bypassed. Versions 1.44.7, 2.15.3, and 3.4.3 contain a fix for validation of such template names. There are no known workarounds aside from upgrading.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-03-24	9.07%	9.50%	+0.43%
2	2026-03-15	2.20%	9.07%	+6.87%
3	2026-03-14	—	2.20%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-03-24

9.07%

9.50%

+0.43%

2026-03-15

2.20%

9.07%

+6.87%

2026-03-14

—

2.20%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
7.5	3.1	HIGH	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N` Click to expand Attack vector (AV:N) Could be attacked over the internet or any normal routed network—not just someone sitting at the machine. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:N) No account or special rights needed—anonymous or random user is enough. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:H) Serious risk that confidential data gets exposed in a big way. Integrity (I:N) Data isn’t meaningfully altered or forged. Availability (A:N) Service keeps running; no real outage angle.	3.9	3.6	[email protected]
7.5	3.1	HIGH	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N` Click to expand Attack vector (AV:N) Could be attacked over the internet or any normal routed network—not just someone sitting at the machine. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:N) No account or special rights needed—anonymous or random user is enough. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:H) Serious risk that confidential data gets exposed in a big way. Integrity (I:N) Data isn’t meaningfully altered or forged. Availability (A:N) Service keeps running; no real outage angle.	3.9	3.6	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

7.5

3.1

HIGH

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

Attack vector (AV:N): Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L): Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N): No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N): Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U): Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H): Serious risk that confidential data gets exposed in a big way.
Integrity (I:N): Data isn’t meaningfully altered or forged.
Availability (A:N): Service keeps running; no real outage angle.

3.9

3.6

[email protected]

7.5

3.1

HIGH

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

Attack vector (AV:N): Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L): Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N): No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N): Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U): Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H): Serious risk that confidential data gets exposed in a big way.
Integrity (I:N): Data isn’t meaningfully altered or forged.
Availability (A:N): Service keeps running; no real outage angle.

3.9

3.6

[email protected]

OS Trackers for CVE-2022-39261

vendor	priority	summary	link
`debian`	not yet assigned	CVE-2022-39261 not yet assigned priority: Debian including 1 source packages (php-twig), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5.	https://security-tracker.debian.org/tracker/CVE-2022-39261
`ubuntu`	medium	CVE-2022-39261 medium priority: Ubuntu including 2 source packages (php-twig, twig), 26 status rows across 13 suites (bionic, focal, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): DNE 11, not-affected 6, released 6, ignored 3.	https://ubuntu.com/security/CVE-2022-39261

Affected software / configurations for CVE-2022-39261

Vendor	Product	Version	Raw CPE
symfony	twig	>= 1.0.0, < 1.44.7	cpe:2.3:a:symfony:twig::::::::
symfony	twig	>= 2.0.0, < 2.15.3	cpe:2.3:a:symfony:twig::::::::
symfony	twig	>= 3.0.0, < 3.4.3	cpe:2.3:a:symfony:twig::::::::
drupal	drupal	>= 8.0.0, < 9.3.22	cpe:2.3:a:drupal:drupal::::::::
drupal	drupal	>= 9.4.0, < 9.4.7	cpe:2.3:a:drupal:drupal::::::::
fedoraproject	fedora	35	cpe:2.3:o:fedoraproject:fedora:35:::::::*
fedoraproject	fedora	36	cpe:2.3:o:fedoraproject:fedora:36:::::::*
fedoraproject	fedora	37	cpe:2.3:o:fedoraproject:fedora:37:::::::*
debian	debian_linux	10.0	cpe:2.3:o:debian:debian_linux:10.0:::::::*
debian	debian_linux	11.0	cpe:2.3:o:debian:debian_linux:11.0:::::::*

References for CVE-2022-39261

URL	Tags
https://github.com/twigphp/Twig/commit/35f3035c5deb0041da7b84daf02dea074ddc7a0b	Patch Third Party Advisory
https://github.com/twigphp/Twig/security/advisories/GHSA-52m2-vc4m-jj33	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/10/msg00016.html	Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2OKRUHPVLIQVFPPJ2UWC3WV3WQO763NR/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AUVTXMNPSZAHS3DWZEM56V5W4NPVR6L7/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NWRFPZSR74SYVJKBTKTMYUK36IJ3SQJP/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TW53TFJ6WWNXMUHOFACKATJTS7NIHVQE/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WV5TNNJLGG536TJH6DLCIAAZZIPV2GUD/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YU4ZYX62H2NUAKKGUES4RZIM4KMTKZ7F/
https://www.debian.org/security/2022/dsa-5248	Third Party Advisory
https://www.drupal.org/sa-core-2022-016	Patch Third Party Advisory

URL

CVE-2022-39261 | Twig may load a template outside a configured directory when using the filesystem loader

Exploit prediction scoring system (EPSS) score for CVE-2022-39261

Common vulnerability scoring system (CVSS) metrics for CVE-2022-39261

Weakness enumeration for CVE-2022-39261

GitHub Security Advisory for CVE-2022-39261

OS Trackers for CVE-2022-39261

Affected software / configurations for CVE-2022-39261

References for CVE-2022-39261