CWE-918
AllowedServer-Side Request Forgery (SSRF)
Abstraction: Base · Status: Incomplete
The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.
5502 vulnerabilities reference this CWE, most recent first.
CVE-2026-53782 (GCVE-0-2026-53782)
Vulnerability from cvelistv5 – Published: 2026-06-11 19:17 – Updated: 2026-07-14 21:33 X_Open Source- CWE-918 - Server-Side Request Forgery (SSRF)
| URL | Tags |
|---|---|
| https://github.com/steipete/summarize/releases/ta… | release-notes |
| https://github.com/steipete/summarize/pull/239 | issue-tracking |
| https://github.com/steipete/summarize/commit/3c55… | patch |
| https://www.vulncheck.com/advisories/summarize-ss… | third-party-advisory |
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CVE-2026-53755 (GCVE-0-2026-53755)
Vulnerability from cvelistv5 – Published: 2026-06-23 18:15 – Updated: 2026-06-26 15:01- CWE-918 - Server-Side Request Forgery (SSRF)
| URL | Tags |
|---|---|
| https://github.com/unclecode/crawl4ai/security/ad… | x_refsource_CONFIRM |
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CVE-2026-53754 (GCVE-0-2026-53754)
Vulnerability from cvelistv5 – Published: 2026-06-23 18:16 – Updated: 2026-06-23 18:54- CWE-918 - Server-Side Request Forgery (SSRF)
| URL | Tags |
|---|---|
| https://github.com/unclecode/crawl4ai/security/ad… | x_refsource_CONFIRM |
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CVE-2026-53727 (GCVE-0-2026-53727)
Vulnerability from cvelistv5 – Published: 2026-07-17 20:30 – Updated: 2026-07-20 13:48- CWE-918 - Server-Side Request Forgery (SSRF)
| URL | Tags |
|---|---|
| https://github.com/premailer/css_parser/security/… | x_refsource_CONFIRM |
| https://github.com/premailer/css_parser/commit/7d… | x_refsource_MISC |
| https://github.com/premailer/css_parser/commit/e0… | x_refsource_MISC |
| https://github.com/premailer/css_parser/releases/… | x_refsource_MISC |
| Vendor | Product | Version | |
|---|---|---|---|
| premailer | css_parser |
Affected:
< 3.0.0
|
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CVE-2026-53607 (GCVE-0-2026-53607)
Vulnerability from cvelistv5 – Published: 2026-06-12 20:54 – Updated: 2026-06-15 18:35- CWE-918 - Server-Side Request Forgery (SSRF)
| URL | Tags |
|---|---|
| https://github.com/apostrophecms/apostrophe/secur… | x_refsource_CONFIRM |
| Vendor | Product | Version | |
|---|---|---|---|
| apostrophecms | apostrophe |
Affected:
<= 4.30.0
|
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CVE-2026-53549 (GCVE-0-2026-53549)
Vulnerability from cvelistv5 – Published: 2026-08-19 20:34 – Updated: 2026-08-25 14:07- CWE-918 - Server-Side Request Forgery (SSRF)
| URL | Tags |
|---|---|
| https://github.com/Termix-SSH/Termix/security/adv… | x_refsource_CONFIRM |
| https://github.com/Termix-SSH/Termix/pull/874 | x_refsource_MISC |
| https://github.com/Termix-SSH/Termix/commit/52f4e… | x_refsource_MISC |
| https://github.com/Termix-SSH/Termix/releases/tag… | x_refsource_MISC |
| Vendor | Product | Version | |
|---|---|---|---|
| Termix-SSH | Termix |
Affected:
< 2.3.2
|
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CVE-2026-53513 (GCVE-0-2026-53513)
Vulnerability from cvelistv5 – Published: 2026-07-15 17:15 – Updated: 2026-07-15 19:29| URL | Tags |
|---|---|
| https://github.com/better-auth/better-auth/securi… | x_refsource_CONFIRM |
| https://github.com/better-auth/better-auth/pull/9574 | x_refsource_MISC |
| https://github.com/better-auth/better-auth/commit… | x_refsource_MISC |
| https://github.com/better-auth/better-auth/releas… | x_refsource_MISC |
| Vendor | Product | Version | |
|---|---|---|---|
| better-auth | better-auth |
Affected:
>= 0.1.0, < 1.6.11
|
|
| @better-auth | sso |
Affected:
>= 0.1.0, < 1.6.11
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CVE-2026-53509 (GCVE-0-2026-53509)
Vulnerability from cvelistv5 – Published: 2026-08-21 21:21 – Updated: 2026-08-21 21:42- CWE-918 - Server-Side Request Forgery (SSRF)
| URL | Tags |
|---|---|
| https://github.com/ondata/ckan-mcp-server/securit… | x_refsource_CONFIRM |
| https://github.com/advisories/GHSA-3xm7-qw7j-qc8v | x_refsource_MISC |
| https://github.com/ondata/ckan-mcp-server/release… | x_refsource_MISC |
| Vendor | Product | Version | |
|---|---|---|---|
| ondata | ckan-mcp-server |
Affected:
< 0.4.106
|
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CVE-2026-53508 (GCVE-0-2026-53508)
Vulnerability from cvelistv5 – Published: 2026-08-31 18:52 – Updated: 2026-08-31 18:58| URL | Tags |
|---|---|
| https://github.com/oasdiff/oasdiff/security/advis… | x_refsource_CONFIRM |
| https://github.com/oasdiff/oasdiff/pull/832 | x_refsource_MISC |
| https://github.com/oasdiff/oasdiff/pull/974 | x_refsource_MISC |
| https://github.com/oasdiff/oasdiff/pull/975 | x_refsource_MISC |
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"datePublished": "2026-08-31T18:52:12.213Z",
"dateReserved": "2026-06-09T17:05:25.059Z",
"dateUpdated": "2026-08-31T18:58:08.849Z",
"state": "PUBLISHED"
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CVE-2026-53507 (GCVE-0-2026-53507)
Vulnerability from cvelistv5 – Published: 2026-08-31 18:57 – Updated: 2026-09-01 14:46| URL | Tags |
|---|---|
| https://github.com/oasdiff/oasdiff-action/securit… | x_refsource_CONFIRM |
| https://github.com/oasdiff/oasdiff-action/pull/128 | x_refsource_MISC |
| https://github.com/oasdiff/oasdiff-action/pull/129 | x_refsource_MISC |
| https://github.com/oasdiff/oasdiff-action/pull/130 | x_refsource_MISC |
| Vendor | Product | Version | |
|---|---|---|---|
| oasdiff | oasdiff-action |
Affected:
< 0.0.51
|
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-53507",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
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"role": "CISA Coordinator",
"timestamp": "2026-09-01T14:46:00.552397Z",
"version": "2.0.3"
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"dateUpdated": "2026-09-01T14:46:09.533Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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},
"title": "CISA ADP Vulnrichment"
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],
"cna": {
"affected": [
{
"product": "oasdiff-action",
"vendor": "oasdiff",
"versions": [
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"status": "affected",
"version": "\u003c 0.0.51"
}
]
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"descriptions": [
{
"lang": "en",
"value": "oasdiff-action is a GitHub Action that detects breaking changes in OpenAPI specs and post a review on every pull request. Before version 0.0.51, the oasdiff actions resolved external $refs in the OpenAPI spec by default (allow-external-refs: true). When an action runs on a pull request whose spec is attacker-controlled \u2014 most importantly fork pull requests on public repositories \u2014 a $ref in that spec is fetched/read on the runner with no interaction required, enabling SSRF and disclosure of structured files on the runner. This issue has been patched in version 0.0.51."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"attackVector": "NETWORK",
"baseScore": 8.3,
"baseSeverity": "HIGH",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "LOW"
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"descriptions": [
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"cweId": "CWE-200",
"description": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor",
"lang": "en",
"type": "CWE"
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"descriptions": [
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"cweId": "CWE-918",
"description": "CWE-918: Server-Side Request Forgery (SSRF)",
"lang": "en",
"type": "CWE"
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},
{
"descriptions": [
{
"cweId": "CWE-1188",
"description": "CWE-1188: Insecure Default Initialization of Resource",
"lang": "en",
"type": "CWE"
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],
"providerMetadata": {
"dateUpdated": "2026-08-31T18:57:41.097Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
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"references": [
{
"name": "https://github.com/oasdiff/oasdiff-action/security/advisories/GHSA-fhj3-7267-7vv5",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/oasdiff/oasdiff-action/security/advisories/GHSA-fhj3-7267-7vv5"
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{
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"tags": [
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"tags": [
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"url": "https://github.com/oasdiff/oasdiff-action/pull/129"
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"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/oasdiff/oasdiff-action/pull/130"
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],
"source": {
"advisory": "GHSA-fhj3-7267-7vv5",
"discovery": "UNKNOWN"
},
"title": "oasdiff actions resolve external $refs by default, enabling SSRF and disclosure of structured files on pull-request runs"
}
},
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"datePublished": "2026-08-31T18:57:41.097Z",
"dateReserved": "2026-06-09T17:05:25.059Z",
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"state": "PUBLISHED"
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No mitigation information available for this CWE.
CAPEC-664: Server Side Request Forgery
An adversary exploits improper input validation by submitting maliciously crafted input to a target application running on a server, with the goal of forcing the server to make a request either to itself, to web services running in the server’s internal network, or to external third parties. If successful, the adversary’s request will be made with the server’s privilege level, bypassing its authentication controls. This ultimately allows the adversary to access sensitive data, execute commands on the server’s network, and make external requests with the stolen identity of the server. Server Side Request Forgery attacks differ from Cross Site Request Forgery attacks in that they target the server itself, whereas CSRF attacks exploit an insecure user authentication mechanism to perform unauthorized actions on the user's behalf.