CVE-2026-91150

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Source
https://cve.org/CVERecord?id=CVE-2026-91150
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-91150.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-91150
Downstream
Published
2026-11-11T18:38:12Z
Modified
2026-11-13T02:47:37Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Cockpit: cockpit: denial of service via unbounded fragmented websocket messages
Details

A flaw was found in Cockpit. This vulnerability allows a remote attacker, without prior authentication, to send specially crafted fragmented WebSocket messages. These messages accumulate without a total-size limit, leading to unbounded memory exhaustion and a denial of service in the cockpit-ws service.

Database specific 
{
    "cna_assigner": "redhat",
    "cwe_ids": [
        "CWE-770"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/91xxx/CVE-2026-91150.json",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "range": [
                        {
                            "fixed": "0:366.1.1-1.el10_3"
                        },
                        {
                            "fixed": "0:356.4.1-1.el10_2"
                        },
                        {
                            "fixed": "0:310.10.2-1.el8_10"
                        },
                        {
                            "fixed": "0:366.1.1-1.el9_9"
                        },
                        {
                            "fixed": "0:366.1.1-1.el9_9"
                        },
                        {
                            "fixed": "0:356.4.1-1.el9_8"
                        }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "InverseAffectedRanges"
                }
            ]
        }
    ]
}
References

Affected packages

Git / github.com/cockpit-project/cockpit

Affected ranges

Type
GIT
Repo
https://github.com/cockpit-project/cockpit
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
4bc66ac3e5b4923528f1ac89517a009b7bc90f93
Fixed
4796b28be064a90e32262cec85be7839e6198e23
Database specific
Show details 
{
    "extracted_events": [
        {
            "range": [
                {
                    "fixed": "4bc66ac3e5b4923528f1ac89517a009b7bc90f93"
                }
            ],
            "source": "REFERENCES_COMMIT"
        },
        {
            "original_tag": "372",
            "range": [
                {
                    "fixed": "4796b28be064a90e32262cec85be7839e6198e23"
                }
            ],
            "source": "REFERENCES_TAG"
        }
    ]
}

Affected versions

0.*
0.10
0.100
0.101
0.102
0.103
0.104
0.105
0.106
0.107
0.108
0.109
0.11
0.110
0.111
0.112
0.113
0.114
0.115
0.116
0.117
0.12
0.13
0.14
0.15
0.16
0.17
0.18
0.19
0.2
0.20
0.21
0.22
0.23
0.24
0.25
0.26
0.27
0.28
0.29
0.3
0.30
0.31
0.32
0.33
0.34
0.35
0.36
0.37
0.38
0.39
0.4
0.40
0.41
0.42
0.44
0.45
0.46
0.47
0.48
0.49
0.5
0.50
0.51
0.52
0.53
0.54
0.55
0.56
0.57
0.58
0.59
0.6
0.60
0.61
0.62
0.63
0.64
0.65
0.66
0.67
0.68
0.69
0.7
0.70
0.71
0.72
0.73
0.74
0.75
0.76
0.77
0.78
0.79
0.8
0.80
0.81
0.82
0.83
0.84
0.85
0.86
0.87
0.88
0.89
0.9
0.90
0.91
0.92
0.93
0.94
0.95
0.96
0.96-1
0.97
0.98
0.99
Other
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
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161
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214
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223
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228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
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254
255
256
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261
262
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264
265
266
267
268
269
270
271
272
273
274
275
276
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279
280
281
282
283
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285
286
287
288
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291
292
293
294
295
296
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298
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300
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302
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310
311
312
313
314
315
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319
320
321
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323
324
325
326
327
328
329
330
331
332
333
334
335
336
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338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
202.*
202.1
205.*
205.1
214.*
214.1
221.*
221.1
222.*
222.1
233.*
233.1
238.*
238.1
244.*
244.1
255.*
255.1
268.*
268.1
274.*
274.1
280.*
280.1
282.*
282.1
286.*
286.1
288.*
288.1
288.2
294.*
294.1
300.*
300.1
310.*
310.1
310.2
311.*
311.1
341.*
341.1
353.*
353.1
360.*
360.1
363.*
363.1
363.2

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-91150.json"