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Vulnerability details: VCID-qr3v-jkjd-qfb1
Vulnerability ID VCID-qr3v-jkjd-qfb1
Aliases CVE-2019-18889
GHSA-79gr-58r3-pwm3
Summary Symfony Unsafe Cache Serialization Could Enable RCE An issue was discovered in Symfony 3.4.0 through 3.4.34, 4.2.0 through 4.2.11, and 4.3.0 through 4.3.7. Serializing certain cache adapter interfaces could result in remote code injection. This is related to symfony/cache.
Status Published
Exploitability None
Weighted Severity None
Risk None
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-94 Improper Control of Generation of Code ('Code Injection')
System Score Found at
epss 0.02554 https://api.first.org/data/v1/epss?cve=CVE-2019-18889
cvssv3.1_qr CRITICAL https://github.com/advisories/GHSA-79gr-58r3-pwm3
cvssv3.1 9.8 https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/cache/CVE-2019-18889.yaml
generic_textual CRITICAL https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/cache/CVE-2019-18889.yaml
cvssv3.1 9.8 https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2019-18889.yaml
generic_textual CRITICAL https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2019-18889.yaml
cvssv3.1 9.8 https://github.com/symfony/symfony/releases/tag/v4.3.8
generic_textual CRITICAL https://github.com/symfony/symfony/releases/tag/v4.3.8
cvssv3.1 9.8 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UED22BOXTL2SSFMGYKA64ZFHGLLJG3EA
generic_textual CRITICAL https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UED22BOXTL2SSFMGYKA64ZFHGLLJG3EA
cvssv3.1 9.8 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UED22BOXTL2SSFMGYKA64ZFHGLLJG3EA
generic_textual CRITICAL https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UED22BOXTL2SSFMGYKA64ZFHGLLJG3EA
cvssv3.1 9.8 https://nvd.nist.gov/vuln/detail/CVE-2019-18889
generic_textual CRITICAL https://nvd.nist.gov/vuln/detail/CVE-2019-18889
cvssv3.1 9.8 https://symfony.com/blog/cve-2019-18889-forbid-serializing-abstractadapter-and-tagawareadapter-instances
generic_textual CRITICAL https://symfony.com/blog/cve-2019-18889-forbid-serializing-abstractadapter-and-tagawareadapter-instances
cvssv3.1 9.8 https://symfony.com/blog/symfony-4-3-8-released
generic_textual CRITICAL https://symfony.com/blog/symfony-4-3-8-released
cvssv3.1 9.8 https://symfony.com/cve-2019-18889
generic_textual CRITICAL https://symfony.com/cve-2019-18889
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2019-18889
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-18889
https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/cache/CVE-2019-18889.yaml
https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2019-18889.yaml
https://github.com/symfony/symfony/releases/tag/v4.3.8
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UED22BOXTL2SSFMGYKA64ZFHGLLJG3EA
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UED22BOXTL2SSFMGYKA64ZFHGLLJG3EA/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UED22BOXTL2SSFMGYKA64ZFHGLLJG3EA
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UED22BOXTL2SSFMGYKA64ZFHGLLJG3EA/
https://nvd.nist.gov/vuln/detail/CVE-2019-18889
https://symfony.com/blog/cve-2019-18889-forbid-serializing-abstractadapter-and-tagawareadapter-instances
https://symfony.com/blog/symfony-4-3-8-released
https://symfony.com/cve-2019-18889
GHSA-79gr-58r3-pwm3 https://github.com/advisories/GHSA-79gr-58r3-pwm3
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/cache/CVE-2019-18889.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2019-18889.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

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required

unchanged

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/symfony/symfony/releases/tag/v4.3.8
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UED22BOXTL2SSFMGYKA64ZFHGLLJG3EA
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

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high

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UED22BOXTL2SSFMGYKA64ZFHGLLJG3EA
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

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none

required

unchanged

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2019-18889
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://symfony.com/blog/cve-2019-18889-forbid-serializing-abstractadapter-and-tagawareadapter-instances
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://symfony.com/blog/symfony-4-3-8-released
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

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low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://symfony.com/cve-2019-18889
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.8484
EPSS Score 0.02554
Published At June 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-01T12:21:54.267111+00:00 GithubOSV Importer Import https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2019/12/GHSA-79gr-58r3-pwm3/GHSA-79gr-58r3-pwm3.json 36.1.3